Background Art Against pests such as insect pests, acarine pests, and nematode pests, various pesticide compositions have been used so far for their control. The conditions of pesticide compositions required have drastically been changed, including the care of their effects on the environment and the acquisition of drug resistance by pests to be controlled. Under such circumstances, there have been great demands for the development of new pesticide compositions.

Disclosure of Invention The present inventors have extensively studied to find compounds having excellent pest controlling activity. As a result, they have found that the malononitrile compounds of formula (Y) as depicted below have excellent controlling activity against pests such as insect pests, acarine pests, and nematode pests, thereby reaching the present invention.

That is, the present invention provides malononitrile compounds of formula (Y) : (hereinafter referred to as the present compound (s))

wherein R'and R'are the same or different and independently Cl-C5 (halo)- alkyl, Cl-ces (halo) alkyloxy, C2-C5 (halo) alkenyl, C2-C5 (halo) alkynyl, hydro- gen, or cyano; R3 is C1-C3 haloalkyl, C2-C4 haloalkenyl, or C2-C4 haloalkynyl ; m is an integer of 1 to 3; R5 is halogen, cyano, nitro, Cl-C4 (halo) alkyl, C2-C4 (halo) alkenyl, C2- C4 (halo) alkynyl, Cl-C4 (halo) alkyloxy, C1-C4 (halo) alkylthio, Cl-C4 (halo)- alkylsulfinyl, Cl-C4 (halo) alkylsulfonyl, C1-C4 (halo) alkylcarbonyl, C1-C4 (halo) alkyloxycarbonyl, C1-C4 (halo) alkylcarbonyloxy, benzyloxy, phenyloxy, or phenylthio, in which the phenyloxy and phenylthio groups may optionally be substituted with halogen or C1-C3 alkyl ; n is an integer of 0 to 4; R6 is hydrogen, halogen, cyano, nitro, Cl-C4 (halo) alkyl, C2-C4 (halo)- alkenyl, C2-C4 (halo) alkynyl, C1-C4 (halo) alkyloxy, C1-C4 (halo) alkylthio, Cl-C4 (halo) alkylsulfinyl, C1-C4 (halo) alkylsulfonyl, C1-C4 (halo) alkylcarbonyl, C1-C4 (halo) alkyloxycarbonyl, Cl-C4 (halo) alkylcarbonyloxy, benzyloxy, phenyloxy, or phenylthio, in which the phenyloxy and phenylthio groups may optionally be substituted with halogen or Cl-C3 alkyl ; with the proviso that when n is 2 or more, then R"s are the same or different from each other.

The present invention also provides use of the present compounds as a pesticide; pesticide compositions comprising the present compounds as active ingredients; and a pest controlling method comprising applying the present compounds to pests or habitats of pests.

Mode for Carrying Out the Invention In the definition of substituents as used herein, each group has the following meaning:

The (halo) alkyl group refers to alkyl optionally substituted with halogen for one or more than one hydrogen atoms.

The (halo) alkyloxy group refers to alkyloxy optionally substituted with halogen for one or more than one hydrogen atoms.

The (halo) alkenyl group refers to alkenyl optionally substituted with halogen for one or more than one hydrogen atoms.

The (halo) alkynyl group refers to alkynyl optionally substituted with halogen for one or more than one hydrogen atoms.

The (halo) alkylthio group refers to alkylthio optionally substituted with halogen for one or more than one hydrogen atoms.

The (halo) alkylsulfinyl group refers to alkylsulfinyl optionally sub- stituted with halogen for one or more than one hydrogen atoms.

The (halo) alkylsulfonyl group refers to alkylsulfonyl optionally sub- stituted with halogen for one or more than one hydrogen atoms.

The (halo) alkylcarbonyl group refers to alkylcarbonyl optionally sub- stituted with halogen for one or more than one hydrogen atoms.

The (halo) alkyloxycarbonyl group refers to alkyloxycarbonyl option- ally substituted with halogen for one or more than one hydrogen atoms.

The (halo) alkylcarbonyloxy group refers to alkylcarbonyloxy option- ally substituted with halogen for one or more than one hydrogen atoms.

The haloalkyl group refers to alkyl substituted with halogen for at least one or more hydrogen atoms.

The haloalkenyl group refers to alkenyl substituted with halogen for at least one or more hydrogen atoms.

The haloalkynyl group refers to alkynyl substituted with halogen for at least one or more hydrogen atoms.

The term"C1-C10"or the like refers to number of carbon atoms constituting the alkyl, alkenyl, or alkynyl group in each substituent. For

example, C1-C4 (halo) alkylcarbonyl means alkylcarbonyl optionally substi- tuted with halogen for one or more hydrogen atoms wherein the alkyl part is constituted by C1-C4 carbon atoms.

In the present compounds, each group includes specific ones as listed below: The Cl-C5 (halo) alkyl group represented by Rl or R2 may include methyl, ethyl, propyl, 1-methylethyl, 1, 1-dimethylethyl, 2,2-dimethylpropyl, chloromethyl, fluoromethyl, difluoromethyl, trifluoromethyl, 2,2, 2-trifluoro- ethyl, and 1, 1,2,2-tetrafLuoroethyl.

The Cl-C5 (halo) alkyloxy group represented by R'or R'may include methoxy, ethoxy, 1-methylethoxy, trifluoromethoxy, difluoromethoxy, 2,2,2- trifluoroethoxy, and 1,1,2,2-tetrafluoroethoxy.

The C2-C5 (halo) alkenyl group represented by Rl or R2 may include vinyl, 1-propenyl, 2-propenyl, 2,2-difluorovinyl, and 1,2,2-trifluorovinyl.

The C2-C5 (halo) alkynyl group represented by Rl or R2 may include ethynyl, 1-propynyl, 2-propynyl and 3,3, 3-trifluoor-1-propynyl.

The C1-C4 haloalkyl group represented by R3 may include fluoro- methyl, chloromethyl, difluoromethyl, dichloromethyl, trifluoromethyl, tri- chloromethyl, 1, 1-difluoroethyl, pentafluoroethyl, 1,1-difluoropropyl, hepta- fluoropropyl, 2,2,2-trifluoroethyl, 3,3,3-trifluoropropyl, and 1,1,2,2-tetra- fluoroethyl.

The Cl-C4 haloalkenyl group represented by R3 may include 1-chloro- vinyl, 2-chlorovinyl, 1-fluorovinyl, 2-fluorovinyl, 2,2-dichlorovinyl, 2,2-di- bromovinyl, 2, 2-difluorovinyl, 1,2,2-trifluorovinyl, 1- (trifluoromethyl) vinyl, 3,3, 3-trifluoro-1-propenyl, 2,3,3,3-tetrafluoro-1-propenyl, 1,2,3,3,3-penta- fluoro-1-propenyl, 3, 3-difluoro-2-propenyl, 2, 3, 3-trifluoro-2-propenyl, and 3,4,4-trifluoro-3-butenyl.

The C2-C4 haloalkynyl group represented by R3 may include 3-chloro-

2-propynyl and 3,3,3-trifluoro-1-propynyl.

The halogen atom represented by R5 or R6 may include fluorine, chlorine, bromine, and iodine.

The Cl-C4 (halo) alkyl group represented by R5 or R6 may include methyl, ethyl, propyl, 1-methylethyl, 1,1-dimethylethyl, trifluoromethyl, pentafluoroethyl, 3,3,3-trifluoroethyl, and 1,1,2,2-tetrafluoroethoxy.

The C2-C4 (halo) alkenyl group represented by R5 or R6 may include vinyl, 1-propenyl, 2-propenyl and 2, 2-difluorovinyl.

The C2-C4 (halo) alkynyl group represented by R5 or R6 may include ethynyl, 1-propynyl, 2-propynyl and 3,3,3-trifluoro-1-propynyl.

The C1-C4 (halo) alkyloxy group represented by R5 of R6 may include methoxy, ethoxy, trifluoromethoxy, bromodifluoromethoxy, difluoromethoxy, chlorodifluoromethoxy, pentafluoroethoxy, 2,2, 2-trifluoroethoxy, and 1,1,2,2- tetrafluoroethoxy.

The Cl-C4 (halo) alkylthio group represented by R5 or R6 may include methylthio, trifluromethylthio, 2,2,2-trifluoroethylthio, and 1,1,2,2-tetra- fluoroethyltbio.

The Cl-C4 (halo) alkylsulfinyl group represented by R5 or R6 may include methylsulfinyl and trifluoromethylsulfinyl.

The Cl-C4 (halo) alkylsulfonyl group represented by R5 or R6 may include methylsulfonyl and trifluoromethylsulfonyl.

The C1-C4 (halo) alkylcarbonyl group represented by R5 or R6 may include acetyl and trifluoroacetyl.

The Cl-C4 (halo) alkyloxycarbonyl group represented by R5 or R6 may include methoxycarbonyl and 2,2, 2-trifluoroethoxycarbonyl.

The Cl-C4 (halo) alkylcarbonyloxy group represented by R5 or R6 may include acetyloxy, propionyloxy, and trifluoroacetyloxy.

The phenyloxy group optionally substituted with halogen or C1-C3

alkyl, which is represented by R5 or R6, may include phenoxy, p-methyl- phenoxy, m-methylphenoxy, and p-chlorophenoxy.

The phenylthio group optionally substituted with halogen or C1-C3 alkyl, which is represented by R5 or R6, may include phenylthio, p-methyl- phenylthio, m-methylphenylthio, and p-chlorophenylthio.

The embodiments of the present invention may include the following compounds: The malononitrile compounds of formula (Y) wherein R1 is hydrogen, and R9 is C1-C5 (halo) alkyl, C2-C5 (halo) alkenyl, or hydrogen; The malononitrile compounds of formula (Y) wherein R'and R'are both hydrogen; The malononitrile compounds of formula (Y) wherein R3 is Cl-C3 fluoroalkyl or C2-C4 fluoroalkenyl ; The malononitrile compounds of formula (Y) wherein R5 is halogen, n is an integer of 0 to 2; The malononitrile compounds of formula (Y) wherein R6 is halogen, cyano, nitro, C1-C4 haloalkyl, C,-C, haloalkyloxy, or C1-C4 haloalkylthio ; The malononitrile compounds of formula (Y) wherein R5 is halogen, n is an integer of 0 to 2, and R3 is halogen, cyano, nitro, C1-C4 haloalkyl, Cl-C4 haloalkyloxy, or C1-C4 haloalkylthio ; The malononitrile compounds of formula (Y) wherein R3 is C1-C3 fluoroalkyl or C2-C4 fluoroalkenyl, R5 is halogen, n is an integer of 0 to 2, and R6 is halogen, cyano, nitro, C1-C4 (halo) alkyl, C1-C4 (halo) alkyloxy, or C1-C4 (halo) alkylthio; The malononitrile compounds of formula (Y) wherein R'and R'are the same or different and independently C1-C3 (halo) alkyl, C1-C8 (halo) alkyl- oxy, C2-C4 (halo) alkenyl, C2-C4 (halo) alkynyl, hydrogen, or cyano; R5 and r6 are the same or different and independently halogen, cyano, nitro, C1-C3

haloalkyl, C1-C3 haloalkyloxy, C1-C3 (halo) alkylthio, C1-C3 (halo) alkylsulfinyl, C1-C3 (halo) alkylsulfonyl, C1-C3 (halo) alkylcarbonyl, or C1-C3 haloalkyloxy- carbonyl; The malononitrile compounds of formula (Y) wherein R1 is hydrogen, R2 is C1-C5 (halo) alkyl, C2-C5 (halo) alkenyl, or hydrogen, R3 is C1-C3 fluoro- alkyl or C2-C4 fluoroalkenyl, R5 is halogen, n is an integer of 0 to 2, and R6 is halogen, cyano, nitro, C1-C4 (halo) alkyl, C1-C4 (halo) alkyloxy, or C1-C4 (halo) alkylthio; The malononitrile compounds of formula (Y) wherein R3 is 1,2,2-tri- fluorovinyl, m is 2, and R6 is trifluoromethyl; The malononitrile compounds of formula (Y) wherein R3 is 1,2,2-tri- fluorovinyl, m is 2, and R6 is difluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is 1,2,2-tri- fluorovinyl, m is 2, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is 1,2,2-tri- fluorovinyl, m is 2, and R 6 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3 is 1,2,2-tri- fluorovinyl, m is 2, and R6 is 1,1,2,2-tetrafluoroethoxy; The malononitrile compounds of formula (Y) wherein R3 is 1,2,2-tri- fluorovinyl, m is 2, and R6 is chlorine ; The malononitrile compounds of formula (Y) wherein R3 is 1,2,2-tri- fluorovinyl, m is 2, and R6 is bromine; The malononitrile compounds of formula (Y) wherein R3 is 1,2,2-tri- fluorovinyl, m is 2, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein Ra is 1,2,2-tri- fluorovinyl, m is 2, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is 1,2,2-tri- fluorovinyl, m is 2, and R6 is nitro;

The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 2, and R6 is trifluoromethyl ; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 2, and R6 is difluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3is trifluoro- methyl, m is 2, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 2, and R3 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3is trifluoro- methyl, m is 2, and R6 is 1,1,2,2-tetrafluoroethoxy; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 2, and R6 is chlorine; The malononitrile compounds of formula (Y) wherein R3is trifluoro- methyl, m is 2, and R6 is bromine; The malononitrile compounds of formula (Y) wherein R3is trifluoro- methyl, m is 2, and R'is fluorine ; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 2, and R3 is cyano; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 2, and R3 is nitro; The malononitrile compounds of formula (Y) wherein R3 is pentafluo- roethyl, m is 2, and R6 is trifluoromethyl ; The malononitrile compounds of formula (Y) wherein R3 is pentalfuo- roethyl, m is 2, and R6 is difluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is pentafluo- roethyl, m is 2, and R6 is trifluoromethyloxy ; The malononitrile compounds of formula (Y) wherein R3 is pentafluo- roethyl, m is 2, and R6 is tri Suoromethylthio ;

The malononitrile compounds of formula (Y) wherein R3 is pentafluo- roethyl, m is 2, and R6 is 1,1,2,2-tetrafluoroethoxy; The malononitrile compounds of formula (Y) wherein R3 is pentafluo- roethyl, m is 2, and R6 is chlorine ; The malononitrile compounds of formula (Y) wherein R3is pentafluo- roethyl, m is 2, and R6 is bromine; The malononitrile compounds of formula (Y) wherein R3is pentafluo- roethyl, m is 2, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein Ris pentafluo- roethyl, m is 2, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is pentafluo- roethyl, m is 2, and R6 is nitro; The malononitrile compounds of formula (Y) wherein R3 trifluor- methyl, m is 1, and R6 is trifluoromethyl ; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 1, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 1, and R6 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 1, and R6 is chlorine; The malononitrile compounds of formula (Y) wherein R3 trifluor- methyl, m is 1, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 1, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 1, and R6 is nitro; The malononitrile compounds of formula (Y) wherein R3is trifluoro- methyl, m is 3, and R6 is trifluoromethyl ;

The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 3, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 3, and R6 is trifluoromethylthio; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 3, and R6 is chlorine; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 3, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 3, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is trifluoro- methyl, m is 3, and R6 is nitro; The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- chlorovinyl, m is 1, and R6 is trifluoromethyl ; The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- chlorovinyl, m is 1, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- chlorovinyl, m is 1, and R6 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- chlorovinyl, m is 1, and R6 is chlorine; The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- chlorovinyl, m is 1, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- chlorovinyl, m is 1, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- chlorovinyl, m is 1, and R6 is nitro; The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- fluorovinyl, m is 1, and R6 is trifluoromethyl ;

The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- fluorovinyl, m is 1, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- fluorovinyl, m is 1, and R6 is trifluoromethylthio; The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- fluorovinyl, m is 1, and R6 is chlorine ; The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- fluorovinyl, m is 1, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- fluorovinyl, m is 1, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is 2,2-di- fluorovinyl, m is 1, and R6 is nitro; The malononitrile compounds of formula (Y) wherein Ra is 3,3,3-tri- fluoro-1-propenyl, m is 1, and R6 is trifluoromethyl ; The malononitrile compounds of formula (Y) wherein R3 is 3,3,3-tri- fluoro-1-propenyl, m is 1, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is 3,3,3-tri- fluoro-1-propenyl, m is 1, and is 6 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3 is 3,3,3-tri- fluoro-1-propenyl, m is 1, and R6 is chlorine; The malononitrile compounds of formula (Y) wherein R3 is 3,3,3-tri- fluoro-1-propenyl, m is 1, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein R3 is 3,3,3-tri- fluoro-1-propenyl, m is 1, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is 3,3,3-tri- fluoro-1-propenyl, m is 1, and R6 is nitro; The malononitrile compounds of formula (Y) wherein R3 is 3,3,3-tri- fluoro-1-propenyl, m is 1, and R6 is trifluoromethyl ;

The malononitrile compounds of formula (Y) wherein R3 is 3,3,3-tri- fluoro-1-propynyl, m is 1, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is 3,3,3-tri- fluoro-1-propynyl, m is 1, and R6 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3 is 3,3,3-tri- fluoro-1-propynyl, m is 1, and R6 is chlorine; The malononitrile compounds of formula (Y) wherein R3 is 3,3,3-tri- fluoro-1-propynyl, m is 1, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein R3 is 3,3,3-tri- fluoro-1-propynyl, m is 1, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is 3,3,3-tri- fluoro-1-propynyl, m is 1, and R6 is nitro; The malononitrile compounds of formula (Y) wherein R3 is heptafluo- propyl, m is 1, and R6 is trifluoromethyl ; The malononitrile compounds of formula (Y) wherein R3 is heptafluo- propyl, m is 1, and R6 is trifluoromethoxy; The malononitrile compounds of formula (Y) wherein R3 is heptafluo- propyl, m is 1, and R6 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3 is heptafluo- propyl, m is 1, and R5 is chlorine; The malononitrile compounds of formula (Y) wherein R3 is heptafluo- propyl, m is 1, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein R3 is heptafluo- propyl, m is 1, and R6 is cyano ; The malononitrile compounds of formula (Y) wherein R3 is heptafluo- propyl, m is 1, and R6 is nitro; The malononitrile compounds of formula (Y) wherein R3 is pentafluo- roethyl, m is 1, and R6 is trifluoromethyl ;

The malononitrile compounds of formula (Y) wherein R3 is pentafluo- roethyl, m is 1, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is pentafluo- roethyl, m is 1, and R6 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3 is pentafluo- roethyl, m is 1, and R6 is chlorine; The malononitrile compounds of formula (Y) wherein R3 is pentafluo- roethyl, m is 1, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein R3 is pentafluo- roethyl, m is 1, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is pentafluo- roethyl, m is 1, and R3 is nitro; The malononitrile compounds of formula (Y) wherein R3 is fluoro- methyl, m is 1, and R6 is trifluoromethyl ; The malononitrile compounds of formula (Y) wherein R3 is fluoro- methyl, m is 1, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R'is fluoro- methyl, m is 1, and R6 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3 is fluoro- methyl, m is 1, and R6 is chlorine; The malononitrile compounds of formula (Y) wherein R3 is fluoro- methyl, m is 1, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein R3 is fluoro- methyl, m is 1, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is fluoro- methyl, m is 1, and R3 is nitro; The malononitrile compounds of formula (Y) wherein R3 is fluoro- methyl, m is 2, and R6 is trifluoromethyl ;

The malononitrile compounds of formula (Y) wherein R3 is fluoro- methyl, m is 2, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is fluoro- methyl, m is 2, and R6 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3 is fluoro- methyl, m is 2, and R6 is chlorine; The malononitrile compounds of formula (Y) wherein R3 is fluoro- methyl, m is 2, and R6 is fluorine; The malononitrile compounds of formula (Y) wherein R3 is fluoro- methyl, m is 2, and R6 is cyano ; The malononitrile compounds of formula (Y) wherein R3 is fluoro- methyl, m is 2, and R6 is nitro; The malononitrile compounds of formula (Y) wherein R3 is chloro- methyl, m is 1, and R6 is trifluoromethyl ; The malononitrile compounds of formula (Y) wherein R3 is chloro- methyl, m is 1, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is chloro- methyl, m is 1, and R6 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3 is chloro- methyl, m is 1, and R6 is chlorine; The malononitrile compounds of formula (Y) wherein R3 is chloro- methyl, m is 1, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein R3 is chloro- methyl, m is 1, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is chloro- methyl, m is 1, and R6 is nitro; The malononitrile compounds of formula (Y) wherein R3 is 1,1-di- fluoroethyl, m is 2, and R6 is trifluoromethyl ;

The malononitrile compounds of formula (Y) wherein R3 is 1,1-di- fluoroethyl, m is 2, and R6 is trifluoromethoxy; The malononitrile compounds of formula (Y) wherein R3 is 1,1-di- fluoroethyl, m is 2, and R6 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3 is 1, 1-di- fluoroethyl, m is 2, and R6 is chlorine ; The malononitrile compounds of formula (Y) wherein R3 is 1, 1-di- fluoroethyl, m is 2, and R6 is fluorine; The malononitrile compounds of formula (Y) wherein R3 is 1,1-di- fluoroethyl, m is 2, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is 1,1-di- fluoroethyl, m is 2, and R6 is nitro; The malononitrile compounds of formula (Y) wherein R3 is 1-(tri- fluoromethyl) vinyl, m is 1, and R6 is trifluoromethyl ; The malononitrile compounds of formula (Y) wherein R3 is 1-(tri fluoromethyl) vinyl, m is 1, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is 1-(tri- fluoromethyl) vinyl, m is 1, and R6 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3 is 1-(tri- fluoromethyl) vinyl, m is 1, and R6 is chlorine; The malononitrile compounds of formula (Y) wherein R3 is 1-(tri- fluoromethyl) vinyl, m is 1, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein R3 is 1-(tri- fluoromethyl) vinyl, m is 1, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is 1-(tri- fluoromethyl)vinyl, m is 1, and R6 is nitro; The malononitrile compounds of formula (Y) wherein R3 is 1-(tri- fluoromethyl) vinyl, m is 2, and R6 is trifluoromethyl ;

The malononitrile compounds of formula (Y) wherein R3 is 1-(tri- fluoromethyl) vinyl, m is 2, and R6 is trifluoromethoxy ; The malononitrile compounds of formula (Y) wherein R3 is 1-(tri- fluoromethyl) vinyl, m is 2, and R6 is trifluoromethylthio ; The malononitrile compounds of formula (Y) wherein R3 is 1-(tri- fluoromethyl) vinyl, m is 2, and R6 is chlorine ; The malononitrile compounds of formula (Y) wherein R3 is 1-(tri- fluoromethyl) vinyl, m is 2, and R6 is fluorine ; The malononitrile compounds of formula (Y) wherein R3 is 1-(tri- fluoromethyl) vinyl, m is 2, and R6 is cyano; The malononitrile compounds of formula (Y) wherein R3 is 1-(tri- fluoromethyl) vinyl, m is 2, and R6 is nitro.

The preferred compounds among the present compounds are the compounds wherein R6 is halogen, cyano, nitro, C1-C4 haloalkyl, Cl-C4 halo- alkyloxy or C1-C4 haloalkylthio; the compounds wherein n is 1 to 3 and at least one of R5 is halogen, cyano, nitro, C1-C4 haloalkyl, C1-C4 haloalkyloxy or C,-C, (halo) alkylthio; or the compounds wherein R3 is 1,2, 2-trifluorovinyl, trifluoromethyl, pentafluoroethyl, 3,3, 3-trifluoro-1-propenyl, heptafluoro- propyl, 1,1-difluoroethyl or 1- (trifluoromethyl) vinyl. More preferred com- pounds are the compounds wherein R6 is halogen, cyano, nitro, C1-C4 fluoro- alkyl, C1-C4 fluoroalkyloxy or C1-C4 fluoroalkylthio ; the compounds wherein n is 1 to 3 and at least one of R6 is halogen, cyano, nitro, C1-C4 fluoroalkyl, C1- C4 fluoroalkyloxy or C1-C4 fluoroalkylthio ; or the compounds wherein m is 2 and R3 is trifluoromethyl.

The following will describe the production processes for the present compounds.

The present compounds can be produced by, for example, the follow- ing (Production Process 1) or (Production Process 2).

(Production Process 1) This is a process by reacting compound (a) with compound (b) in the presence of a base. (R5) n R1 RZ z) m-R3 R5 \h < Z (b) 9\</(CH2) mR3 ß T A OH2) m-R3 CNJ CN CN Base I CN CN 6 6 R (a) R (Y)

wherein R1, R2, R3, R5, R6, m, and n are as defined above, and Z is halogen, methanesulfonyl, trifluoromethanesulfonyl, or toluenesulfonyl.

The reaction is usually carried out in a solvent. The solvent which can be used in the reaction may include acid amides such as dimethylform- amide; ethers such as diethyl ether and tetrahydrofuran; organic sulfur compounds such as dimethylsulfoxide and sulfolan ; halogenated hydro- carbons such as 1,2-dichloroethane and chlorobenzene; aromatic hydro- carbons such as toluene and xylene; water; and mixtures thereof.

The base which can be used in the reaction may include inorganic bases such as sodium hydride, sodium hydroxide, potassium hydroxide, and potassium carbonate; alkali metal alkoxide such as sodium methoxide, sodium ethoxide, and potassium tert-butoxide ; alkali metal amides such as lithium diisopropylamide ; and organic bases such as 4-dimethylaminopyri- dine, 1, 4-diazabicyclo [2.2.2] octane, and 1, 8-diazabicylco [5.4.0]-7-undecene.

The amount of base used in the reaction is usually in a ratio of 1 to 10 moles relative to 1 mole of compound (a).

The reaction temperature is usually in the range of-20°C to 100°C.

The reaction time is usually in the range of 1 to 24 hours.

The amount of compound (b) used in the reaction is usually in a ratio of 1 to 10 moles relative to 1 mole of compound (a).

After the reaction, the reaction mixture is poured into water, followed

by ordinary post-treatment procedures including extraction with an organic solvent and concentration, thereby isolating the desired present compounds, which may be purified by a technique such as chromatography or recrystal- lization.

(Production Process 2) This is a process by reacting compound (c) with compound (d) in the presence of a base. RR R2 (R5) n 1 Zu R R Rs CH 3 () n (CH2) m-R3R6ZI (d) (R n (CH2) m-R3 CN CN Base CN/GN ( ) Rs (Y) /\ D" wherein Ru, R, R3, R5, R6, m, n, and Z are as defined above.

The reaction is usually carried out in a solvent. The solvent which can be used in the reaction may include acid amides such as dimethylform- amide ; ethers such as diethyl ether and tetrahydrofuran; organic sulfur compounds such as dimethylsulfoxide and sulfolan ; halogenated hydro- carbons such as 1,2-dichloroethane and chlorobenzene; aromatic hydro- carbons such as toluene and xylene; water; and mixtures thereof.

The base which can be used in the reaction may include inorganic bases such as sodium hydride, sodium hydroxide, potassium hydroxide, and potassium carbonate ; alkali metal alkoxide such as sodium methoxide, sodium ethoxide, and potassium tert-butoxide; alkali metal amides such as lithium diisopropylamide ; and organic bases such as 4-dimethylaminopyri- dine, 1, 4-diazabicyclo [2.2.2] octane, and 1, 8-diazabicylco [5.4.0]-7-undecene.

The amount of base used in the reaction is usually in a ratio of 1 to 10 moles relative to 1 mole of compound (a).

The reaction temperature is usually in the range of-20°C to 100°C.

The reaction time is usually in the range of 1 to 24 hours.

The amount of compound (b) used in the reaction is usually in a ratio of 1 to 10 moles relative to 1 mole of compound (a).

After the reaction, the reaction mixture is poured into water, followed by ordinary post-treatment procedures including extraction with an organic solvent and concentration, thereby isolating the desired present compounds, which may be purified by a technique such as chromatography or recrystal- lization.

The compound (a) can be produced through a route, for example, as shown in the following scheme. wherein Ru, R2, R6, R6, and n are as defined above.

(Step 1) The compound (f) can be produced by reacting compound (e) with malononitrile.

The reaction is usually carried out in a solvent and in the presence of a base. The solvent which can be used in the reaction may include acid amides such as N, N-dimethylformamide; ethers such as diethyl ether and tetrahydrofuran; halogenated hydrocarbons such as chloroform, 1,2-dichlo- roethane, and chlorobenzene; aromatic hydrocarbons such as toluene and xylene; alcohols such as methanol, ethanol, and isopropanol; and mixtures thereof.

The base which can be used in the reaction may include tetrabutyl- ammonium hydroxide. The amount of base used in the reaction is usually

in a ratio of 0.01 to 0.5 mole relative to 1 mole of compound (e).

The amount of malononitrile used in the reaction is usually in a ratio of 1 to 10 moles relative to 1 mole of compound (e).

The reaction temperature is usually in the range of-20°C to 200°C.

The reaction time is usually in the range of 1 to 24 hours.

The reaction may be carried out, while removing, if necessary, water which is generated by the reaction, from the reaction system.

After the reaction, the reaction mixture is poured into water, followed by ordinary post-treatment procedures including extraction with an organic solvent and concentration, thereby isolating the desired present compounds, which may be purified by a technique such as chromatography or recrystal- lization.

(Step 2) (1) The case where 2 iS a substituent other than hydrogen and cyano : The compound (a) can be produced by reacting compound (f) with an organometallic compound.

The reaction is usually carried out in a solvent and, if necessary, in the presence of a copper salt.

The solvent which can be used in the reaction may include ethers such as diethyl ether and tetrahydrofuran; aromatic hydrocarbons such as toluene and xylene; and mixtures thereof.

The organometallic compound which can be used in the reaction may include organic magnesium compounds such as methyl magnesium iodide, ethyl magnesium bromide, isopropyl magnesium bromide, vinyl magnesium bromide, ethynyl magnesium bromide, and dimethyl magnesium; organic lithium compounds such as methyl lithium; organic zinc compounds such as diethyl zinc; and organic copper compounds such as trifluoromethyl copper.

The amount of organometallic compound used in the reaction is usually in a ratio of 1 to 10 moles relative to 1 mole of compound (f).

The copper salt which can be used in the reaction may include copper (I) iodide and copper (I) bromide. The amount of copper salt used in the reaction is usually not greater than 1 mole relative to 1 mole of compound (f).

The reaction temperature is usually in the range of-20°C to 100°C.

The reaction time is usually in the range of 1 to 24 hours.

After the reaction, the reaction mixture is poured into water, followed by ordinary post-treatment procedures including extraction with an organic solvent and concentration, thereby isolating the desired present compounds, which may be purified by a technique such as chromatography or recrystal- lization.

(2) The case where R2 is hydrogen: The compound (a) can be produced by subjecting compound (f) to reduction.

The reduction is usually carried out in a solvent.

The solvent which can be used in the reaction may include ethers such as diethyl ether and tetrahydrofuran ; aromatic hydrocarbons such as toluene and xylene; alcohols such as methanol, ethanol, and propanol; water; and mixtures thereof.

The reducing agent which can be used in the reaction may include sodium borohydride. The amount of reducing agent used in the reaction is usually in a ratio of 0.25 to 2 moles relative to 1 mole of compound (f).

The reaction time is usually in the range of a moment to 24 hours.

The reaction temperature is usually in the range of 0°C to 50°C.

After the reaction, the reaction mixture is poured into water, followed by ordinary post-treatment procedures including extraction with an organic solvent and concentration, thereby isolating the desired present compounds,

which may be purified by a technique such as chromatography or recrystal- lization.

(3) The case where R2 is cyano: The compound (a) can be produced by reacting compound (f) with a cyanide.

The solvent which can be used in the reaction may include ethers such as diethyl ether and tetrahydrofuran; aromatic hydrocarbons such as toluene and xylene; and mixtures thereof.

The cyanide which can be used in the reaction may include tetra- butylammonium cyanide. The amount of cyanide used in the reaction is usually in a ratio of 1 to 10 moles relative to 1 mole of compound (f).

The reaction temperature is usually in the range of-20°C to 100°C.

The reaction time is usually in the range of 1 to 24 hours.

After the reaction, the reaction mixture is poured into water, followed by ordinary post-treatment procedures including extraction with an organic solvent and concentration, thereby isolating the desired present compounds, which may be purified by a technique such as chromatography or recrystal- lization.

The pests against which the present compounds exhibit controlling activity may include insect pests, acarine pests, and nematode pests, specific examples which are as follows: Hemiptera: Delphacidae such as Laodelphaxstriatellus, Nilaparvata lugens, and Sogatella furcifera ; Deltocephalidae such as Nephotettix cincticeps and Nephotettix vireseens, Aphididae such as Aphis gossypii and Myzus persicae ; Pentatomidae such as Nezara antennata, Riptortus clavetus

Eysarcoris lewisi, Eysarcoris parvus, Plautia stali and Halyomorpha misia ; Aleyrodidae such as Trialeurodes vaporarioruln and Bemisia argen- tifolii; Coccidae such as Aonidiella aurantii, Comstockaspis perniciosa, Un- aspis citri, Ceroplastes rubens, and Icerya purchasi; Tingidae ; Psyllidae; Lepidoptera: Pyralidae such as Chilo suppressalis, Cnaphalocrocis medinalis, Notarcha derogata, and Plodia interpunctella ; Noctuidae such as Spodoptera litura, Pseudaletia separata, Thorico- plusia spp., Heliothis spp., and Helicoverpa spp.; Pieridae such as Pieris rapae ; Tortricidae such as Adoxophyes spp., Grapholita molesta, and Cydia pomonella ; Carposinidae such as Carposina niponensis ; Lyonetiidae such as Lyonetia spp.; Lymantriidae such as Lyamantria spp. and Euproctis spp.; Yponomentidae such as Plutella xylostella; Gelechiidae such as Pectinophora gossypiella ; Arctiidae such as Hyphantria cunea ; Tineidae such as Tinea translucens and Tineola bisselliella ; Diptera: Calicidae such as Culex pipiens pallens, Culex tritaeniorhynchus, and Culexquinquefasciatus ; Aedes spp. such as Aedes aegypti and Aedes albopictus, Anopheles spp. such as Anopheles sinensis ; Chironomidae;

Muscidae such as Musca domestica and Muscina stabulans ; Calliphoridae ; Sarcophagidae; Fanniidae; Anthomyiidae such as Delia platura and Delia antiqua ; Tephritidae; Drosophilidae; Psychodidae; Simuliidae ; Tabanidae ; Stomoxyidae; Agromyzidae; Coleoptera: Diabrotica spp. such as Diabrotica virgifera and Diabrotica undecim- punctata howardi ; Scarabaeidae such as Anomala cuprea and Anomala rufocuprea ; Curculinoidae such as Sitophilus zeamais, Lissorhoptrus oryzophilus, and Callosobruchuys chienensis; Tenebrionidae such as Tenebrio molitor and Tribolium castaneum ; Chrysomelidae such as Oulema oryzae, Aulacophora femoralis, Phyl- lotreta striolata, and Leptinotarsa decemlineata ; Anobiidae; Epilachna spp. such as Epilachna vigintioctopunctata ; Lyctidae ; Bostrychidae ; Cerambycidae; Paederus fuscipes ; Dictyoptera :

Blattella germanica, Periplaneta fuliginosa, Periplaneta americana, Periplaneta brunnea, and Blatta orientalis; Thysanoptera: Th-ripspalmi, Tbrips tahaci, Frankliniella occidentalis, Frankliniella intonsa ; Hymenoptera: Formicidae; Vespidae; Bethylidae ; Tenthredinidae such as Athalia japonica ; Orthoptera: Gryllotalpidae; Acrididae; Siphonaptera: Ctenocephalides felis, Ctenocephalides canis, Pulex irritans, Xeno- psylla cheopis; Anoplura : Pediculus humanus corporis, Phthirus pubis, Haematopinus eurys- ternus, and Dalmalinia ovis ; Isoptera: Reticulitermes speratus and Coptotermes formosanus ; Acarina: Tetranychidae such as Tetranychus urticae, Tetranychus kanzawai, Panonychus citri, Panonychus ulmi, and Oligonychus spp.; Eriophyidae such as Aculops pelekassi and Aculus schlechtendali ; Tarsonemidae such as Polyphagotarsonemus latus ; Tenuip alpidae ; Tuckerellidae ;

Ixodidae such as Haemaphysalis longicornis, Haemaphysalis flava, Dermacentor taiwanicus, Ixodes ovatus, Ixodes persulcatus, and Boophilus microplus ; Acaridae such as Tyrophagus putrescentiae ; Epidermoptidae such as Dermatophagoides farinae and Dermato- phagoides ptrenyssnus ; Cheyletidae such as Cheyletus eruditus, Cheyletus malaccensis, and Cheyletus moorei; Dermanyssidae; Arachnida: Chiracanthium japonicum and Latrodectus hasseltii, Chilopoda : Thereuonema hilgendorfi and Scolopendra subspinipes; Diplopoda: Oxidus gracilis and Nedyopus tambanus; Isopoda: Armadillidium vulgare ; Gastropoda : Limax marginatus and Limax flavus ; Nematoda: Pratylenchus coffeae, Pratylenchus fallax, Heterodera glycines, Glo- bodera rostochiensis, Meloidogyne hapla, and Meloidogyne incognita.

When the present compounds are used as the active ingredients of pesticide compositions, they may be used as such without addition of any other ingredients. However, they are usually used in admixture with solid carriers, liquid carriers and/or gaseous carriers, and if necessary, by addition of adjuvants such as surfactants, followed by formulation into various forms such emulsifiable concentrates, oil formulations, flowables, dusts, wettable

powders, granules, paste formulations, microcapsule formulations, foams, aerosol formulations, carbon dioxide gas formulations, tablets, or resin for- mulations. These formulations may be used by processing into poison baits, shampoo, mosquito coils, electric mosquito mats, smokes, fumigants, or sheets.

In these formulations, the present compounds are usually contained each in an amount of 0.1% to 95% by weight.

The solid carrier which can be used in the formulation may include the following materials in fine powder or granular form: clays (e. g, kaolin clay, diatomaceous earth, bentonite, Fubasami clay, acid clay); talc, ceramic, and other inorganic minerals (e. g, sericite, quartz, sulfur, activated carbon, calcium carbonate, hydrated silica); and chemical fertilizers (e. g, ammonium sulfate, ammonium phosphate, ammonium nitrate, ammonium chloride, urea).

The liquid carrier may include aromatic or aliphatic hydrocarbons (e. g., xylene, toluene, alkylnaphthalene, phenylxylylethane, kerosine, light oils, hexane, cyclohexane) ; halogenated hydrocarbons (e. g, chlorobenzene, dichloromethane, dichloroethane, trichloroethane); alcohols (e. g, methanol, ethanol, isopropyl alcohol, butanol, hexanol, ethylene glycol); ethers (e. g., diethyl ether, ethylene glycol dimethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, propylene glycol monomethyl ether, tetrahydrofuran, dioxane); esters (e. g., ethyl acetate, butyl acetate); ketones (e. g., acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone) ; nitriles (acetonitrile, isobutyronitrile) ; sulfoxides (e. g., dimethylsulfoxide) ; acid amides (e. g, N, N-dimethylformamide, N, N-dimethylacetamide); vege- table oils (e. g, soy bean oil and cotton seed oil); plant essential oils (e. g., orange oil, hyssop oil, lemon oil); and water.

The gaseous carrier may include butane gas, Freon gas, liquefied

petroleum gas (LPG), dimethyl ether, and carbon dioxide.

The surfactant may include alkyl sulfate salts; alkylsulfonic acid salts; alkylarylsulfonic acid salts; alkyl aryl ethers and their polyoxyethylene derivatives; polyethylene glycol ethers; polyol esters; and sugar alcohol deri- vatives.

The other adjuvants may include binders, dispersants, and stabili- zers, specific examples of which are casein, gelatin, polysaccharides (e. g., starch, gum arabic, cellulose derivatives, alginic acid), lignin derivatives, bentonite, sugars, synthetic water-soluble polymers (e. g., polyvinyl alcohol, polyvinylpyrrolidone, polyacrylic acid), PAP (isopropyl acid phosphate), BHT (2,6-di-t-butyl-4-methylphenol), BHA (mixtures of 2-t-butyl-4-methoxyphe- nol and 3-t-butyl-4-methoxyphenol), vegetable oils, mineral oils, fatty acids, and fatty acid esters.

The base material for resin formulations may include vinyl chloride polymers and polyurethanes. These base materials may contain, if neces- sary, plasticizers such as phthalic acid esters (e. g., dimethyl phthalate, di- octyl phthalate), adipic acid esters, and stearic acid. The resin formulations can be obtained by kneading the present compounds into the base materials with an ordinary kneader and subsequent forming such as injection molding, extrusion, or pressing. They can be processed, if necessary, though further forming and cutting into resin formulations in various shapes such as plates, films, tapes, nets, or strings. These resin formulations are processed as, for example, collars for animals, ear tags for animals, sheet formulations, at- tractive strings, or poles for horticultural use.

The base material for poison baits may include grain powders, vege- table oils, sugars, and crystalline cellulose. If necessary, additional agents may be added, including antioxidants such as dibutylhydroxytoluene and nordihydroguaiaretic acid; preservatives such as dehydroacetic acid ; agents

for preventing children and pets from erroneously eating, such as hot pepper powder; and pest-attractive flavors such as cheese flavor, onion flavor, and peanut oil.

The pesticide compositions of the present invention may be used by, for example, direct application to pests and/or application to the habitats of pests (e. g, plant bodies, animal bodies, soil).

When the pesticide compositions of the present invention are used for the control of pests in agriculture and forestry, their application amounts are usually 1 to 10,000 g/ha, preferably 10 to 500 g/ha. Formulations such as emulsifiable concentrates, wettable powders, flowables, and microcapsule formulations are usually used after dilution with water to have an active ingredient concentration of 1 to 1000 ppm, while formulations such as dusts and granules are usually used as such. These formulations may be directly applied to plants to be protected from pests. These formulations can also be incorporated into soil for the control of pests inhabiting the soil, or can also be applied to beds before planting or applied to planting holes or plant bot- toms in the planting. Further, the pesticide compositions of the present invention in the form of sheet formulations can be applied by the methods in which the sheet formulations are wound around plants, disposed in the vi- cinity of plants, or laid on the soil surface at the plant bottoms.

When the pesticide compositions of the present invention are used for the prevention of epidemics, their application amounts as active ingredient amounts are usually 0.001 to 10 mg/m3 for spatial application or 0.001 to 100 mg/m2 for planar application. Formulations such as emulsifiable concen- trates, wettable powders, and flowables are usually applied after dilution with water to have an active ingredient concentration of 0.01 to 10,000 ppm, while formulations such as oil formulations, aerosols, smokes, or poison baits are usually applied as such.

When the pesticide compositions of the present invention are used for the control of external parasites on domestic animals such as cattle, sheep, goat, and fowl or small animals such as dogs, cats, rats, and mice, they can be used by the veterinarily well-known methods. As the specific methods of use, administration is achieved by, for example, tablets, feed incorporation, suppositories, or injections (e. g, intramuscular, subcutaneous, intravenous, intraperitoneal) for systemic control, or by, for example, spraying, pour-on treatment, or spot-on treatment with an oil formulation or an aqueous solu- tion, washing animals with a shampoo formulation, or attachment of a collar or ear tag prepared from a resin formulation to animals for non-systemic control. The amounts of the present compounds when administered to ani- mal bodies are usually in the range of 0.1 to 1000 mg per 1 kg weight of each animal.

The pesticide compositions of the present invention can also be used in admixture or combination with other insecticides, nematocides, acaricides, bactericides, fungicides, herbicides, plant growth regulators, synergists, fer- tilizers, soil conditioners, animal feeds, and the like.

Examples of the insecticides and acaricides include organophos- phorus compounds such as fenitrothion [O, 0-dimethyl 0- (3-methyl-4-nitro- phenyl) phosphorothioate], fenthion [O, 0-dimethyl 0- (3-methyl-4- (methyl- thio) phenyl) phosphorothioate], diazinon [O, O-diethyl 0-2-isopropyl-6- methylpyrimidin-4-yl phosphorothioate], chlorpyrifos [O, O-diethyl 0-3, 5,6- trichloro-2-pyridyl phosphorothioate], DDVP [2,2-dichlorovinyl dimethyl phosphate], cyanophos [0-4-cyanophenyl O, 0-dimethyl phosphorothioate], dimethoate [O, 0-dimethyl S- (N-methylcarbamoylmethyl) dithiophosphate], phenthoate [ethyl 2-dimethoxyphosphinothioylthio (phenyl) acetate], mala- thion [diethyl (dimethoxyphosphinothioylthio) succinate], and azinphos- methyl [S-3,4-dihydro-4-oxo-1,2,3-benzotriazin-3-ylmethyl 0, 0-dimethyl

phosphorodithioate]; carbamate compounds such as BPMC (2-sec-butyl- phenyl methylcarbamate), benfracarb [ethyl N-[2, 3-dihydro-2, 2-dimethyl- benzofuran-7-yloxycarbonyl (methyl) aminothio]-N-isopropyl-ß-alaninate], propoxur [2-isopropoxyphenyl N-methylcarbamate] and carbaryl [1-naphthyl N-methylcarbamate]; pyrethroid compounds such as etofenprox [2- (4- ethoxyphenyl)-2-methylpropyl 3-phenoxybenzyl ether], fenvalerate [ (RS)-a- cyano-3-phenoxybenzyl (RS)-2- (4-chlorophenyl)-3-methyl-butyrate], esfen- valerate [ (S)-a-cyano-3-phenoxybenzyl (S)-2- (4-chlorophenyl)-3-methyl- butyrates, fenpropathrin [(RS)-cc-cyano-3-phenoxybenzyl 2,2,3,3-tetra- methylcyclopropanecarboxylate], cypermethrin [ (RS)-a-cyano-3-phenoxy- benzyl (lRS)-cis, trans-3- (2, 2-dichlorovinyl)-2, 2-dimethylcyclopropanecar- boxylate], permethrin [3-phenoxybenzyl (1RS)-cis, trans-3-(2, 2-dichloro- vinyl)-2,2-dimethylcyclopropanecarboxylate], cyhalothrin [ (RS)-a-cyano-3- phenoxybenzyl (Z)-(1RS)-cis-3-(2-chloro-3, 3, 3-trifluoroprop-1-enyl)-2, 2-di- <BR> <BR> <BR> <BR> methylcyclopropanecarboxylate], deltamethrin [(S)-α-cyano-3-phenoxy- benzyl (1R)-cis-3-(2,2-dibromovinyl)-2, 2-dimethylcyclopropane-carboxylate], cycloprothrin [(RS)-α-cyano-3-phenoxybenzyl (RS)-2,2-dichloro-l- (4-ethoxy- phenyl) cyclopropanecarboxylate], fluvalinate [a-cyano-3-phenoxybenzyl N- (2-chloro-a, a, a-trifluoro-p-tolyl)-D-valinate], bifenthrin [2-methylbiphenyl-3- ylmethyl (Z)- (lRS)-cis-3- (2-chloro-3, 3,3-triSluoroprop-1-enyl)-2, 2-dimethyl- cyclopropanecarboxylate], 2-methyl-2- lluoro-methoxyphenyl)- propyl 3-phenoxybenzyl ether, tralomethrin [ (S)-a-cyano-3-phenoxybenzyl (lR-cis)-3-{(lRS) (1,2,2,2-tetrabromoethyV}-2, 2-dimethyl-cyclopropanecarbox- ylate], silaAluofen [(4-ethoxyphenyl) {3-(4-fluoro-3-phenoxyphenyVpropyl}- dimethylsilane], d-phenothrin [3-phenoxybenzyl (lR-cis, trans)-chrysan- themate], cyphenothrin [(RS)-oc-cyano-3-phenoxybenzyl (lR-cis, trans)-chry- santhemate], d-resmethrin [5-benzyl-3-furylmethyl (lR-cis, trans)-chrysan- themate], acrinathrin [ (S)-a-cyano-3-phenoxybenzyl (lR, cis (Z))-2,2-dimeth-

yl-3- {3-oxo-3- (l, l, l, 3,3,3-hexafLuoropropyloxy) propenyl} cyclopropanecarbox- ylate], cyfluthrin [ (RS)-a-cyano-4-fluoro-3-phenoxybenzyl 3- (2, 2-dichloro- vinyl)-2, 2-dimethylcyclopropanecarboxylate], tefluthrin [2,3,5,6-tetrafluoro- 4-methylbenzyl (lRS-cis (Z))-3- (2-chloro-3, 3,3-trifluoroprop-1-enyl)-2,2-di- methylcyclopropanecarboxylate], transfluthrin [2,3,5,6-tetrafluorobenzyl (1R-trans)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecar boxylate], tetra- methrin [3,4,5,6-tetrahydrophthalimidomethyl (lRS)-cis, trans-chrysan- themate], allethrin [(RS)-3-allyl-2-methyl-4-oxocyclopent-2-enyl (lRS)- cis, trans-chrysanthemate], prallethrin [(S)-2-methyl-4-oxo-3-(2-propynyl) cyclopent-2-enyl (lR)-cis, trans-chrysanthemate], empenthrin [ (RS)-l-ethy- nyl-2-methyl-2-pentenyl (lR)-cis, trans-chrysanthemate], imiprothrin [2, 5- dioxo-3-(prop-2-ynyl)imidazolidin-1-ylmethyl (1R)-cis, trans-2,2-dimethyl-3- (2-methylprop-l-enyl) cyclopropanecarboxylate], d-furamethrin [5- (2-pro- pynyl) furfuryl (lR)-cis, trans-chrysanthemate] and 5- (2-propynyl) furfuryl 2,2,3,3-tetramethylcyclopropanecarboxylate; neonicotinoid derivatives such as N-cyano-N'-methyl-N'- (6-chloro-3-pyridylmethyl) acetamidine; niten- pyram [N- (6-chloro-3-pyridylmethyl)-N-ethyl-N'-methyl-2-nitrovynylide ne- diamine] ; thiacloprid [1-(2-chloro-5-pyridylmethyl)-2-cyanoiminothiazoline] ; thiamethoxam [3- ( (2-chloro-5-thiazolyl) methyl)-5-methyl-4-nitroiminotetra- hydro-1, 3,5-oxadiazine], 1-methyl-2-nitro-3-((3-tetrahydrofuryl) methyl)- guanidine and 1- (2-chloro-5-thiazolyl) methyl-3-methyl-2-nitroguanidine ; nitroiminohexahydro-1, 3,5-triazine derivatives; chlorinated hydrocarbons such as endosulfan [6,7,8,9,10,10-hexachloro-1,5,5a, 6,9,9a-hexahydro-6,9- methano-2,4,3-benzodioxathiepine oxide], y-BHC [1,2,3,4,5,6-hexachloro- cyclohexane] and 1, 1-bis (chlorophenyl)-2,2,2-trichloroethanol; benzoyl- phenylurea compounds such as chlorfluazuron [1- (3, 5-dichloro-4- (3-chloro-5- trifluoromethylpyridyn-2-yloxy) phenyl)-3-(2, 6-difLuorobenzoyl) urea], teflu- benzuron [1- (3, 5-dichloro-2,4-difluorophenyl)-3-(2, 6-difluorobenzoyl) urea]

and flufenoxuron [1-(4-(2-chloro-4-triJluoromethylphenoxy)-2-fluorophenyV- 3- (2, 6-difluorobenzoyl) urea]; juvenile hormone like compounds such as pyri- proxyfen [4-phenoxyphenyl 2- (2-pyridyloxy) propyl ether], methoprene [iso- propyl (2E, 4E)-ll-methoxy-3, 7,11-trimethyl-2,4-dodecadienoate] and hydro- prene [ethyl (2E, 4E)-ll-methoxy-3, 7,11-trimethyl-2,4-dodecadienoate]; thio- urea derivatives such as diafenthiuron [N- (2, 6-diisopropyl-4-phenoxyphen- yl)-N'-tert-butylcarbodiimide] ; phenylpyrazole compounds; 4-bromo-2- (4- chlorophenyl)-1-ethoxymethyl-5-trifluoromethylpyrrol-3-carbo nitrile [chlor- fenapil] ; metoxadiazone [5-methoxy-3- (2-methoxyphenyl)-1, 3,4-oxadiazol- 2 (3H)-one], bromopropylate [isopropyl 4,4'-dibromobenzilate], tetradifon [4- chlorophenyl 2,4,5-trichlorophenyl sulfones, chinomethionat [S, S-6-methyl- <BR> <BR> <BR> <BR> <BR> quinoxaline-2, 3-diyldithiocarbonate], pyridaben [2-tert-butyl-5-(4-tert- butylbenzylthio)-4-chloropyridazin-3 (2H)-one], fenpyroximate [tert-butyl (E)-4- [ (1, 3-dimethyl-5-phenoxypyrazol-4-yl) methyleneaminooxymethyl] ben- zoate], tebufenpyrad [N- (4-tert-butylbenzyl)-4-cbloro-3-ethyl-1-methyl-5- pyrazolecarboxamide], polynactins complex [tetranactin, dinactin and trinactin], pyrimidifen [5-chloro-N- [2- {4- (2-ethoxyethyl)-2, 3-dimethylphen- oxy} ethyl]-6-ethylpyrimidin-4-amine], milbemectin, abamectin, ivermectin and azadirachtin [AZAD]. Examples of the synergists include bis- (2, 3,3,3- tetrachloropropyl) ether (S-421), N- (2-ethylhexyl) bicyclo [2.2.1] hept-5-ene- 2,3-dicarboximide (MGK-264) and a- [2- (2-butoxyethoxy) ethoxy]-4,5-methyl- enedioxy-2-propyltoluene (piperonyl butoxide).

The present invention will further be illustrated by the following production examples, formulation examples, and test examples; however, the present invention is not limited only to these examples. In the formulation examples, the present compound numbers are those shown in Table 1 below.

The following will describe some production examples for the present compounds.

Production Example 1 First, 0.50 g of (4-chlorobenzyl) malononitrile was dissolved in 10 ml of N, N-dimethylformamide, to which 0.16 g of sodium hydride (60% in oil) was added under ice cooling. After the evolution of hydrogen gas ceased, while stirring under ice cooling, 0.48 ml of 2,3-dichloropropene was added dropwise, followed by stirring at room temperature for 5 hours. Then, 10% hydrochloric acid was added to the reaction mixture, which was extracted with diethyl ether. The organic layer was successively washed with 10% hydrochloric acid, a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pres- sure. The residue was subjected to silica gel column chromatography to give 0.19 g of 2- (4-chlorobenzyl)-2- (2-chloro-2-propenyl) malononitrile (the present compound (1)).

Yield: 27%; m. p.: 85. 5°C.

Production Example 2 Using 0.50 g of (4- (trifluoromethylthio) benzyl) malononitrile, 5 ml of N, N-dimethylformamide, 90 mg of sodium hydride (60% in oil), and 0.26 g of 2,3-dichloropropene, and according to the process described in the Pro- duction Example 1, there was obtained 0.30 g of 2- (2-chloro-2-propenyl)-2- (4- (trifluoromethylthio) benzyl) malononitrile (the present compound (2)).

Yield: 47%; 'H-NMR (CDC13, TMS, 8 (ppm)): 3.05 (2H, s), 3.32 (2H, s), 5.58-5.66 (2H, m), 7.48 (2H, d), 7.73 (2H, d).

Production Example 3 Using 0.1 g of benzylmalononitrile, 5 ml of N, N-dimethylformamide, 0.073 g of cesium carbonate, and 0.1 g of 2,2,2-trifLuoroethyl trifluor- methanesulfonate, and according to the process described in the Production

Example 1, there was obtained 0.057 g of 2-benzyl-2- (2, 2,2-trifluoroethyl)- malononitrile (the present compound (3)).

Yield: 40%; 'H-NMR (CDCIg, TMS, # (ppm)): 2.76 (2H, q), 3.36 (2H, s), 7.37-7.47 (5H, m).

Production Example 4 Using 0.1 g of benzylmalononitrile, 5 ml of N, N-dimethylformamide, 0.010 g of sodium hydride (60% in oil), and 0.04 g of 4-bromo-1, 1, 2-trifluoro- 1-butene, and according to the process described in the Production Example 1, there was obtained 0.042 g of 2-benzyl-2- (3, 4,4-trifluoro-3-butenyl)- malononitrile (the present compound (4)).

Yield: 57%; 'H-NMR (CDC13, TMS, 5 (ppm)): 2.17-2.23 (2H, m), 2.64-2.78 (2H, m), 3.27 (2H, s), 7.34-7.45 (5H, m).

Production Example 5 Using 0.3 g of (4- (trifluoromethoxy) benzyl) malononitrile, 5 ml of N, N-dimethylformamide, 0.073 g of cesium carbonate, and 0.35 g of 2,2,3,3,3-pentafluoropropyl trifluoromethanesulfonate, and according to the process described in the Production Example 1, there was obtained 0.12 g of 2- (2, 2,3,3,3-pentafluoropropyl)-2- (4- (trifluoromethoxy) benzyl) malononitrile (the present compound (5)).

Yield: 29%; 1H-NMR (CDC13, TMS, 8 (ppm)): 2.76 (2H, t), 3.38 (2H, s), 7.30 (2H, d), 7.46 (2H, d) Production Example 6 Using 0.3 g of (3,3,3-trifluoropropyl) malononitrile, 3 ml of N, N- dimethylformamide, 0.08 g of sodium hydride (60% in oil), and 0.4 g of 4- acetylbenzyl bromide, and according to the process described in the Pro-

duction Example 1, there was obtained 0.43 g of 2- (4-acetylbenzyl)-2- (3, 3,3- trifluoropropyl) malononitrile (the present compound (6)).

Yield: 78%; 1H-NMR (CDC13, TMS, 5 (ppm)): 2.22-2.34 (2H, m), 2.51-2.61 (2H, m), 2.67 (3H, s), 3.42 (2H, s), 7.50 (2H, d), 7.97 (2H, d).

Production Example 7 Using 0.30 g of (2,6-dichloro-4- (trifluoromethyl) benzyl) malononitrile, 5 ml of N, N-dimethylformamide, 0.05 g of sodium hydride (60% in oil), and 0.20 g of 1-bromo-3, 3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.21 g of 2- (2, 6- dichloro-4- (trifluoromethyl) benzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (7)).

Yield: 53%; 'H-NMR (CDC13, TMS, 8 (ppm)): 2.41-2.49 (2H, m), 2.52-2.63 (2H, m), 3.79 (2H, s), 7.68 (2H, s).

Production Example 8 Using 0.30 g of (4- (trifluoromethyl) benzyl) malononitrile, 6 ml of N, N-dimethylformamide, 0.60 g of sodium hydride (60% in oil), and 0.38 g of 4-iodo-1, 1, 1, 2,2-pentafluorobutane, and according to the process described in the Production Example 1, there was obtained 0.30 g of 2- (3, 3,4,4,4-penta- fluorobutyl)-2- (4- (trifluoromethyl) benzyl) malononitrile (the present com- pound (8)).

Yield: 54%; 'H-NMR (CDC13, TMS, 8 (ppm)) : 2.27-2.62 (4H, m), 3.86 (2H, s), 7.53 (2H, d), 7.71 (2H, d).

And there was obtained 15 mg of 2- (3, 4,4,4-tetrafluoro-2-butenyl)-2- (4- (trifluoromethyl) benzyl) malononitrile (the present compound (48)) as low- polar compound.

Yield: 3%; 1H-NMR (CDC13, TMS, 8 (ppm)): 2.96 (2H, d), 3.30 (2H, s), 5.78 (1H, dt), 7.53 (2H, d), 7. 71 (2H, d).

Production Example 9 Using 3.86 g of (4-bromobenzyl) malononitrile, 25 ml of N, N-di- methylformamide, 0.72 g of sodium hydride (60% in oil), and 3.20 g of 1- bromo-3,3,3-trifLuoropropane, and according to the process described in the Production Example 1, there was obtained 4.61 g of 2- (4-bromobenzyl)-2- (3,3,3-trifluoropropyl) malononitrile (the present compound (9)).

Yield: 85% ; 1H-NMR (CDC13, TMS, 8 (ppm)): 2.18-2.27 (2H, m), 2.45-2.60 (2H, m), 3.22 (2H, s), 7.26 (2H, d), 7.57 (2H, d).

Production Example 10 Using 0.30 g of (4- (trifluoromethoxy) benzyl) malononitrile, 10 ml of N, N-dimethylformamide, 0.06 g of sodium hydride (60% in oil), and 0.38 g of 4-iodo-1, 1, 1, 2,2-pentafluorobutane, and according to the process described in the Production Example 1, there was obtained 0.15 g of 2- (3, 3,4,4,4-penta- fluorobutyl)-2- (4- (trifluoromethoxy) benzyl) malononitrile (the present com- pound (10)).

Yield: 28%; 1H-NMR (CDC13, TMS, 8 (ppm)): 2.21-2.62 (4H, m), 3.30 (2H, s), 7.27 (2H, d), 7.43 (2H, d).

Production Example 11 Under nitrogen atmosphere, 0.40 g of 2- (2-formylethyl)-2- (4- (trifluoromethyl) benzyl) malononitrile was dissolved in 10 ml of trichloro- fluoromethane, to which 0.20 ml of diethylaminosulfur trifluoride was added dropwise slowly, and then stirred for 30 minutes. Then, water was added to the reaction mixture, which was extracted with ethyl acetate. The organic

layer was washed with a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 0.15 g of 2- (3, 3-difluoropropyl)-2- (4- (trifluoromethyl) benzyl) malono- nitrile (the present compound (11)).

Yield: 34%; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.19-2.34 (4H, m), 3.31 (2H, s), 6. 00 (1H, tt), 7.53 (2H, d), 7.71 (2H, d).

Production Example 12 Using 0.50 g of benzylmalononitrile, 10 ml of N, N-dimethyl- formamide, 0.14 g of sodium hydride (60% in oil), and 0.63 g of 1-bromo- 3,3,3-trifluoropropane, and according to the process described in the Pro- duction Example 1, there was obtained 0.14 g of 2-benzyl-2- (3, 3,3-trifluoro- propyl) malononitrile (the present compound (12)).

Yield: 17%; 1H-NMR (CDC13, TMS, 5 (ppm)): 2.20-2.27 (2H, m), 2.45-2.59 (2H, m), 3.28 (2H, s), 7.34-7.48 (5H, m).

Production Example 13 Using 0.50 g of (4-(trifluoromethylthio) benzyl) malononitrile, 10 ml of N, N-dimethylformamide, 0.09 g of sodium hydride (60% in oil), and 0.38 g of 1-bromo-3, 3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.03 g of 2- (4- (trifluoromethyl- thio) benzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (13)).

Yield: 11%; 'H-NMR (CDC13, TMS, 8 (ppm)) : 2.20-2.29 (2H, m), 2.51-2.62 (2H, m), 3.29 (2H, s), 7.45 (2H, d), 7.73 (2H, d).

Production Example 14

Using 0.80 g of 2- (3-hydroxypropyl)-2- (4- (trifluoromethyl) benzyl)- malononitrile, 8 ml of dichloromethane and 0.3 ml of Diethylaminosulfur trifluoride, and according to the process described in the Production Example 11, there was obtained 0.05 g of 2- (3-fluoropropyl)-2- (4- (trifluoromethyl) ben- zyl) malononitrile (the present compound (14)).

Yield: 5%; 1H-NMR (CDCl3, TMS, 5 (ppm)): 2.14-2.20 (4H, m), 3.30 (2H, s), 4.59 (2H, dt), 7.53 (2H, d), 7.69 (2H, d).

Production Example 15 Using 1.00 g of (4-chlorobenzyl) malononitrile, 10 ml of N, N-di- methylformamide, 1.0 g of sodium hydride (60% in oil), and 0.93 g of 1- bromo-3,3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.21 g of 2- (4-chlorobenzyl)-2- (3,3,3-trifluoropropyl) malononitrile (the present compound (15)).

Yield: 22% ; 1H-NMR (CDCl3, TMS, 5 (ppm)): 2. 17-2.26 (2H, m), 2.48-2.63 (2H, m), 3.24 (2H, s), 7.32 (2H, d), 7.42 (2H, d).

Production Example 16 Using 1.00 g of (4-fluorobenzyl) malononitrile, 15 ml of N, N-di- methylformamide, 0.23 g of sodium hydride (60% in oil), and 1.02 g of 1- bromo-3,3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.34 g of 2- (4-fluorobenzyl)-2- (3,3,3-trifluoropropyl) malononitrile (the present compound (16)).

Yield: 22%; 'H-NMR (CDCl3, TMS, 8 (ppm)) : 2.20-2.27 (2H, m), 2.47-2.62 (2H, m), 3.24 (2H, s), 7.13 (2H, dd), 7.37 (2H, dd).

Production Example 17 Using 0.50 g of (2,4,6-trifl. uorobenzyl) malononitrile, 10 ml of N, N-di-

methylformamide, 0.11 g of sodium hydride (60% in oil), and 0.46 g of 1- bromo-3,3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.07 g of 2- (2, 4,6-trifluorobenzyl)- 2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (17)).

Yield: 10%; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.22-2.29 (2H, m), 2.50-2.61 (2H, m), 3.68 (2H, s), 6.82 (2H, dd).

Production Example 18 Using 5.00 g of (4-nitrobenzyl) malononitrile, 60 ml of N, N-di- methylformamide, 1.10 g of sodium hydride (60% in oil), and 4.85 g of 1- bromo-3,3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.80 g of 2- (4-nitrobenzyl)-2- (3,3,3-trifluoropropyl) malononitrile (the present compound (18)).

Yield: 11% ; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.28-2.32 (2H, m), 2.52-2.64 (2H, m), 3.40 (2H, s), 7.58 (2H, d), 8.33 (2H, d).

Production Example 19 Using 1.00 g of (3,4-difluorobenzyl) malononitrile, 10 ml of N, N-di- methylformamide, 0.20 g of sodium hydride (60% in oil), and 1.38 g of 1- bromo-3,3,3-ttifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.32 g of 2- (3, 4-difluorobenzyl)-2- (3,3,3-trifluoropropyl) malononitrile (the present compound (19)).

Yield: 21%; 'H-NMR (CDCl3, TMS, b (ppm)): 2.20-2.29 (2H, m), 2.50-2.61 (2H, m), 3.22 (2H, s), 7.11-7.15 (2H, m), 7.21-7.31 (2H, m).

Production Example 20 Using 0.50 g of (4-chlorobenzyl) malononitrile, 5 ml of N, N-di- methylformamide, 0. 12 g of sodium hydride (60% in oil), and 0.30 ml of

1,1,3-trichloropropene, and according to the process described in the Pro- duction Example 1, there was obtained 0.52 g of 2- (4-chlorobenzyl)-2- (3, 3- dichloro-2-propenyl) malononitrile (the present compound (20)).

Yield: 66%; m. p.: 67.5°C.

Production Example 21 Using 2.00 g of (3,4-dichlorobenzyl) malononitrile, 20 ml of N, N-di- methylformamide, 0.36 g of sodium hydride (60% in oil), and 2.37 g of 1- bromo-3,3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.42 g of 2- (3, 4-dichlorobenzyl)-2- (3,3,3-trifluoropropyl) malononitrile (the present compound (21)).

Yield: 45%; 1H-NMR (CDCl3, TMS, 8 (ppm)): 2.22-2.29 (2H, m), 2.50-2.62 (2H, m), 3.21 (2H, s), 7.25 (1H, d), 7.51 (2H, dd).

Production Example 22 Using 1.00 g of (4-cyanobenzyl) malononitrile, 10 ml of N, N-di- methylformamide, 0.36 g of sodium hydride (60% in oil), and 2.37 g of 1- bromo-3,3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.42 g of 2- (4-cyanobenzyl)-2- (3,3,3-trifLuoropropyl) malononitrile (the present compound (22)).

Yield: 22% ; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.25-2.30 (2H, m), 2.51-2.62 (2H, m), 3.31 (2H, s), 7.53 (2H, d), 7.76 (2H, d).

Production Example 23 Using 1.00 g of (4-chlorobenzyl) malononitrile, 10 ml of N, N-di- methylformamide, 0.21 g of sodium hydride (60% in oil), and 1.44 g of 4- iodo-1, 1, 1, 2,2-pentafluorobutane, and according to the process described in the Production Example 1, there was obtained 0.47 g of 2- (4-chlorobenzyl)-2-

(3,3,4,4,4-pentafluorobutyl) malononitrile (the present compound (23)).

Yield: 28%; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.25-2.32 (2H, m), 2.41-2.53 (2H, m), 3.25 (2H, s), 7.33 (2H, d), 7.43 (2H, d).

Production Example 24 Using 1.00 g of (4-chlorobenzyl) malononitrile, 10 ml of N, N-di- methylformamide, 0.21 g of sodium hydride (60% in oil), and 0.67 g of 1- bromo-2-fluoroethane, and according to the process described in the Pro- duction Example 1, there was obtained 0.30 g of 2- (4-chlorobenzyl)-2- (2- fluoroethyl) malononitrile (the present compound (24)).

Yield: 22%; 1H-NMR (CDC13, TMS, 8 (ppm)): 2.39 (2H, dt), 3.27 (2H, s), 4.83 (2H, dt), 7.34 (2H, d), 7.41 (2H, d).

Production Example 25 Using 1.0 g of (4-chlorobenzyl) malononitrile, 15 ml of N, N-di- methylformamide, 0.073 g of cesium carbonate, and 1.47 g of 2,2,3,3-tetra- fluoropropyl trifluoromethanesulfonate, and according to the process described in the Production Example 1, there was obtained 0.12 g of 2- (4- chlorobenzyl)-2- (2, 2,3,3-tetrafluoropropyl) malononitrile (the present com- pound (25)).

Yield: 7% ; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.69 (2H, t), 3.31 (2H, s), 5. 87 (1H, tt), 7.34 (2H, d), 7.41 (2H, d).

Production Example 26 First, 0.55 g of 4-iodobenzyl bromide was dissolved in 10 ml of N, N- dimethylformamide, to which the suspension of 0. 11g of sodium hydride (60% in oil) and 0.30g of (3,3,3-trifluoropropyl) malononitrile in 5ml of N, N- dimethylformamide was added dropwise, while stirring under ice cooling.

After stirring for 4 hours at 0°C, 10% hydrochloric acid was added to the reaction mixture at room temperature, which was extracted with ethyl acetate. The organic layer was successively washed with water, a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 0.16 g of 2- (4-iodobenzyl)-2- (3,3,3-trifluoropropyl) malononitrile (the present compound (26)).

Yield: 22%; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.17-2.23 (2H, m), 2.49-2.60 (2H, m), 3.22 (2H, s), 7.11 (2H, d), 7.78 (2H, d).

Production Example 27 Using 0.15 g of (4-vinylbenzyl) chloride, 3 ml of N, N-dimethyl- formamide, 0.05 g of sodium hydride (60% in oil) and 0.17 g of (3,3,3-tri- fluoropropyl) malononitrile, and according to the process described in the Production Example 27, there was obtained 0.18 g of 2- (3, 3,3-trifluoro- propyl)-2- (4-vinylbenzyl) malononitrile (the present compound (27)).

Yield: 63%; 1H-NMR (CDCl3, TMS, 5 (ppm)): 2.20-2.24 (2H, m), 2.48-2.63 (2H, m), 3.26 (2H, s), 5.32 (2H, d), 5.80 (2H, d), 6.72 (2H, dd), 7.33 (2H, d), 7.41 (2H, d).

Production Example 28 Using 0.20 g of (4- (trifluoromethoxy) benzyl) malononitrile, 5 ml of N, N-dimethylformamide, 50 mg of sodium hydride (60% in oil), and 0.17 ml of 1,1,3-trichloropropene, and according to the process described in the Pro- duction Example 1, there was obtained 80 mg of 2- (3, 3-dichloro-2-propenyl)- 2- (4- (trifluoromethoxy) benzyl) malononitrile (the present compound (28)).

Yield: 28%; m. p.: 96.5°C.

Production Example 29 Using 0.20 g of (4- (trifluoromethoxy) benzyl) malononitrile, 5 ml of N, N-dimethylformamide, 50 mg of sodium hydride (60% in oil), and 0.46 g of 1,1,3-tribromopropene, and according to the process described in the Pro- duction Example 1, there was obtained 0.16 g of 2- (3, 3-dibromo-2-propenyl)- 2- (4- (trifluoromethoxy) benzyl) malononitrile (the present compound (29)).

Yield: 44%; m. p.: 126.7°C.

Production Example 30 Using 0.23 g of 3-nitro-4-methylbenzyl bromide, 3 ml of N, N-di- methylformamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3- trifluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.10 g of 2- (3-nitro-4-methyl- benzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (30)).

Yield: 31%; 'H-NMR (CDCl3, TMS, 6 (ppm)): 2.25-2.30 (2H, m), 2.49-2.61 (2H, m), 2.65 (3H, s), 3.31 (2H, s), 7.45 (1H, d), 7.55 (1H, d), 8. 00 (1H, s).

Production Example 31 Using 0.16 g of 4-ethylbenzyl chloride, 3 ml of N, N-dimethylform- amide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3-trifluoro- propyl) malononitrile, and according to the process described in the Pro- duction Example 26, there was obtained 0.14 g of 2- (4-ethylbenzyl)-2- (3, 3,3- trifluoropropyl) malononitrile (the present compound (31)).

Yield: 50%; 1H-NMR (CDC13, TMS, 8 (ppm)): 1.25 (3H, t), 2.04-2.23 (2H, m), 2.50- 2.58 (2H, m), 3.23 (2H, s), 7.24-7.28 (4H, m).

Production Example 32 Using 0.20 g of 3-methoxybenzyl bromide, 3 ml of N, N-dimethyl-

formamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3-tri- fluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.09 g of 2- (3-methoxybenzyl)-2- (3,3,3-trifluoropropyl) malononitrile (the present compound (32)).

Yield: 33% ; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.19-2.22 (2H, m), 2.48-2.59 (2H, m), 3.24 (2H, s), 3.83 (3H, s), 6.90-7.00 (3H, m), 7.31 (1H, m).

Production Example 33 Using 0.23 g of 4-t-butylbenzyl bromide, 3 ml of N, N-dimethyl- formamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3- trifluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.14 g of 2- (4-t-butylbenzyl)-2- (3,3,3-trifluoropropyl) malononitrile (the present compound (33)).

Yield: 47%; 'H-NMR (CDC13, TMS, 8 (ppm)): 1.33 (9H, s), 2.20-2.24 (2H, m), 2.48- 2.59 (2H, m), 3.24 (2H, s), 7.29 (2H, d), 7.43 (2H, d).

Production Example 34 Using 0.22 g of 4- (methylthio) benzyl bromide, 3 ml of N, N-dimethyl- formamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3-tri- fluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.15 g of 2- (4- (methylthio)- benzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (34)).

Yield: 50%; 'H-NMR (CDCl3, TMS, 8 (ppm)) : 2.17-2.22 (2H, m), 2.43-2.53 (2H, m), 2.50 (3H, s), 3.16 (2H, s), 7.29 (4H, s).

Production Example 35 Using 0.21 g of 4-isopropylbenzyl bromide, 3 ml of N, N-dimethyl- formamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3-tri-

fluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.24 g of 2- (4-isopropylbenzyl)- 2- (3, 3,3-trifluoropropyVmalononitrile (the present compound (35)).

Yield: 85%; 1H-NMR (CDCl3, TMS, 8 (ppm)) : 1.27 (6H, d), 2.20-2.23 (2H, m), 2.51-2.60 (2H, m), 3.36 (2H, s), 7.26 (4H, s).

Production Example 36 Using 0.24 g of 3- (trifluoromethyl) benzyl bromide, 3 ml of N, N-di- methylformamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3- trifluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.17 g of 2- (3- (trifluoromethyl)- benzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (36)).

Yield: 53%; 1H-NMR (CDC13, TMS, 5 (ppm)): 2.21-2.29 (2H, m), 2.48-2.62 (2H, m), 3.33 (2H, s), 7.52-7.72 (3H, m).

Production Example 37 Using 0.14 g of 3-metylbenzyl chloride, 3 ml of N, N-dimethylform- amide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3-trifluoro- propyl) malononitrile, and according to the process described in the Pro- duction Example 26, there was obtained 0.17 g of 2- (3-methylbenzyl)-2- (3,3,3-trifluoropropyl) malononitrile (the present compound (37)).

Yield: 62%; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.18-2.23 (2H, m), 2.36 (3H, s), 2.47- 2.59 (2H, m), 3.23 (2H, s), 7.16 (1H, s) 7.22-7.33 (3H, m).

Production Example 38 Using 0.21 g of 2-chloro-4-nitrobenzyl chloride, 3 ml of N, N-di- methylformamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3-

trifluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.15 g of 2- (2-chloro-4-nitro- benzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (38)).

Yield: 46% ; 1H-NMR (CDC13, TMS, 8 (ppm)): 2.32-2.36 (2H, m), 2.49-2.60 (2H, m), 3.60 (2H, s), 7.60 (1H, d), 8.23 (1H, d), 8.39 (1H, s).

Production Example 39 Using 0.28 g of 3-chloro-4- (trifl. uoromethyl) benzyl chloride, 3 ml of N, N-dimethylformamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3-trifluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.25 g of 2- (3-chloro-4- (trifluoromethyl) benzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (39)).

Yield: 70% ; 'H-NMR (CDC13, TMS, 8 (ppm)): 2.26-2.30 (2H, m), 2.52-2.63 (2H, m), 3.28 (2H, s), 7.24 (1H, d), 7.29 (1H, d), 7.70 (1H, dd).

Production Example 40 Using 0.23 g of 2,3-dimethoxybenzyl bromide, 3 ml of N, N-di- methylformamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3- trifluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.26 g of 2- (2, 3-dimethoxy- benzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (40)).

Yield: 80%; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.18-2.22 (2H, m), 2.46-2.57 (2H, m), 3.37 (2H, s), 3.88 (3H, s), 3.90 (3H, s), 6.95-7.11 (2H, d).

Production Example 41 Using 0.10 g of 2-chloro-4- (trifluoromethyl) benzyl bromide, 3 ml of N, N-dimethylformamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of

(3,3,3-trifluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.05 g of 2- (2-chloro-4- (triffuoromethyl) benzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (41)).

Yield: 39%; 'H-NMR (CDC13, TMS, 8 (ppm)): 2.21-2.35 (2H, m), 2.49-2.63 (2H, m), 3.56 (2H, s), 7.62 (1H, d), 7.68 (1H, d), 7.78 (1H, s).

Production Example 42 Using 2.05g of 2- (1- (4-chlorophenyl) ethyl) malononitrile, 10 ml of N, N-dimethylformamide, 1.38 g of potassium carbonate, and 1.77 g of 1- bromo-3,3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.49 g of 2- (1- (4-chlorophenyl)- ethyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (42)).

Yield: 17% ; 'H-NMR (CDC13, TMS, 8 (ppm)): 1.71 (3H, d), 1.86-2.14 (2H, m), 2.40- 2.60 (2H, m), 3.22 (lH, q), 7.27 (2H, d), 7.39 (2H, d).

Production Example 43 First, 1.00 g of 2- (3, 3,3-trifluoropropyl)-2- (4-vinylbenzyl) malono- nitrile (the present compound (27)) was dissolved in 10ml of chloroform, to which 0.5 g of bromine dissolved in 8 ml of chloroform was added dropwise slowly, while stirring under ice cooling, followed by further stirring for 5 hours. Then, water was added to the reaction mixture, which was extracted with chloroform. The organic layer was successively washed with water and a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 1.07 g of 2- (4- (1, 2-dibromoethyl) benzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (43)).

Yield: 68%; 'H-NMR (CDC13, TMS, 8 (ppm)) : 2.22-2.26 (2H, m), 2.49-2.61 (2H, m), 3.27 (2H, s), 3.97 (1H, t), 4.07 (1H, dd), 5.14 (1H, dd), 7.39 (2H, d), 7.48 (2H, d).

Production Example 44 Using 0.51 g of (2-chloro-4-fluorobenzyl) malononitrile, 5 ml of N, N- dimethylformamide, 0.12 g of sodium hydride (60% in oil), and 0.34 g of 1- bromo-3,3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.21 g of 2- (2-chloro-4-fluoro- benzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (44)).

Yield: 34%; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.27-2.31 (2H, m), 2.50-2.62 (2H, m), 3.48 (2H, s), 7.07 (1H, m), 7.26 (1H, m), 7.53 (1H, m).

Production Example 45 Using 0.49 g of 3-metyl-4-nitrobenzyl methanesulfonate, 5 ml of N, N-dimethylformamide, 0.10 g of sodium hydride (60% in oil), and 0.3 g of (3,3,3-trifluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.51 g of 2- (3-methyl-4- nitrobenzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (45)).

Yield: 82%; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.14-2.30 (2H, m), 2.51-2.65 (2H, m), 2.66 (3H, s), 7.37 (1H, d), 7.39 (1H, d), 8.03 (1H, dd).

Production Example 46 Using 0.32 g of (4-cyanobenzyl) malononitrile, 7 ml of N, N-di- methylformamide, 0.12 g of sodium hydride (60% in oil), and 0.25 g of 1- bromo-2-fluoroethane, and according to the process described in the Pro- duction Example 1, there was obtained 0.10 g of 2- (4-cyanobenzyl)-2- (2-

fluoroethyl) malononitrile (the present compound (46)).

Yield: 22%; 'H-NMR (CDC13, TMS, 8 (ppm)): 2.45 (2H, dt), 3.36 (2H, s), 4.85 (2H, dt), 7.55 (2H, d), 7.75 (2H, d).

Production Example 47 Using 0.40 g of (4-nitrobenzyl) malononitrile, 5 ml of N, N-dimethyl- formamide, 0.12 g of sodium hydride (60% in oil), and 0.25 g of 1-bromo-2- fluoroethane, and according to the process described in the Production Example 1, there was obtained 0.10 g of 2- (4-nitrobenzyl)-2- (2-fluoroethyl)- malononitrile (the present compound (47)).

Yield: 22%; 1H-NMR (CDCl3, TMS, S (ppm)): 2.47 (2H, dt), 3.41 (2H, s), 4.86 (2H, dt), 7.61 (2H, d), 8.30 (2H, d).

Production Example 48 Using 0.50 g of (4- (trifluoromethoxy) benzyl) malononitrile, 9 ml of N, N-dimethylformamide, 96 mg of sodium hydride (60% in oil), and 0.79 g of 4-bromo-1, 1, 2-trifluoro-1-butene, and according to the process described in the Production Example 1, there was obtained 0.19 g of 2- (3, 4,4-trifluoro-3- butenyl)-2- (4- (trifluoromethoxy) benzyl) malononitrile (the present compound (49)).

Yield: 27%; 1H-NMR (CDCl3, TMS, 8 (ppm)): 2. 19-2.26 (2H, m), 2.66-2,81 (2H, m), 3.26 (2H, s), 7.28 (2H, d), 7.43 (2H, d).

Production Example 49 Using 0.50 g of (4- (trifluoromethoxy) benzyl) malononitrile, 8 ml of N, N-dimethylformamide, 96 mg of sodium hydride (60% in oil), and 0.74 g of 1-bromo-3, 3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.14 g of 2- (3, 3,3-trifluoropropyl)-

2- (4- (trifluoromethoxy) benzyl) malononitrile (the present compound (50)).

Yield: 21%; 1 H-NMR (CDCl3, TMS, 8 (ppm)) : 2.21-2.28 (2H, m), 2.46-2.61 (2H, m), 3.27 (2H, s), 7.27 (2H, d), 7.44 (2H, d).

Production Example 50 Using 0.47 g of (4-bromobenzyl) malononitrile, 5 ml of N, N-di- methylformamide, 0.12 g of sodium hydride (60% in oil), and 0.25 g of 1- bromo-2-fluoroethane, and according to the process described in the Pro- duction Example 1, there was obtained 0.27 g of 2- (4-bromobenzyl)-2- (2- fLuoroethyl) malononitrile (the present compound (51)).

Yield: 48%; 1H-NMR (CDC13, TMS, 6 (ppm)): 2.39 (2H, dt), 3.26 (2H, s), 4.83 (2H, dt), 7.22 (2H, d), 7.55 (2H, d).

Production Example 51 Using 0.37 g of (4-methoxybenzyl) malononitrile, 5 ml of N, N-di- methylformamide, 0.12 g of sodium hydride (60% in oil), and 0.25 g of 1- bromo-2-fluoroethane, and according to the process described in the Pro- duction Example 1, there was obtained 0.23 g of 2- (2-fluoroethyl)-2- (4- methoxybenzyl) malononitrile (the present compound (52)).

Yield: 49% ; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.35 (2H, dt), 3.22 (2H, s), 3.76 (3H, s), 4.80 (2H, dt), 6. 91 (2H, d), 7.28 (2H, d).

Production Example 52 Using 0.41 g of 2- (1- (4-chlorophenyl) ethyl) malononitrile, 5 ml of N, N-dimethylformamide, 0.12 g of sodium hydride (60% in oil), and 0.25 g of l-bromo-2-lluoroethaneS and according to the process described in the Pro- duction Example 1, there was obtained 0.22 g of 2- (1- (4-chlorophenyl) ethyl)- 2- (2-fluoroethyl) malononitrile (the present compound (53)).

Yield:44%; 'H-NMR (CDC13, TMS, 8 (ppm)): 1.71 (3H, d), 2.04-2.33 (2H, m) 3.30 (1H, q), 4.80 (2H, dt), 7.28 (2H, d), 7.37 (2H, d).

Production Example 53 Using 0.50 g of (4-(trifluoromethylthio) benzyl) malononitrile, 10 ml of N, N-dimethylformamide, 86 mg of sodium hydride (60% in oil), and 0.74 g of 4-bromo-1, 1, 2-trifluoro-l-butene, and according to the process described in the Production Example 1, there was obtained 0.12 g of 2- (3, 4,4-trifluoro-3- butenyl)-2- (4- (trifluoromethylthio) benzyl) malononitrile (the present com- pound (54)).

Yield: 17%; 1 H-NMR (CDCl3, TMS, 8 (ppm)): 2.20-2.27 (2H, m), 2.68-2.82 (2H, m), 3.28 (2H, s), 7.45 (2H, d), 7.72 (2H, d).

Production Example 54 Using 0.45 g of (4- (trifluoromethyl) benzyl) malononitrile, 5 ml of N, N-dimethylformamide, 0.12 g of sodium hydride (60% in oil), and 0.25 g of 1, 1,3-trichloropropene, and according to the process described in the Pro- duction Example 1, there was obtained 0.28 g of 2- (3, 3-dichloro-2-propenyl)- 2- (4- (trifluoromethyl) benzyl) malononitrile (the present compound (55)).

Yield: 37%; 1H-NMR (CDCl3, TMS, 8 (ppm)): 2.96 (2H, d), 3.28 (2H, s), 6.09 (1H, d), 7.53 (2H, d), 7.70 (2H, d).

Production Example 55 Using 0.37 g of (4-cyanobenzyl) malononitrile, 5 ml of N, N-di- methylformamide, 0.12 g of sodium hydride (60% in oil), and 0.25 g of 1,3,3- trichloropropene, and according to the process described in the Production Example 1, there was obtained 0.17 g of 2- (4-cyanobenzyl)-2- (3, 3-dichloro- propenyl) malononitrile (the present compound (56)).

Yield: 29%; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.97 (2H, d), 3.24 (2H, s), 6.08 (1H, d), 7.53 (2H, d), 7.64 (2H, d).

Production Example 5G Using 0.48 g of 2-(1-(4-(trifluoromethyVphenyl) ethyl) malononitrile, 5 ml of N, N-dimethylformamide, 0.12 g of sodium hydride (60% in oil), and 0.34 g of 1-bromo-3, 3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.26 g of 2- (1- (4- (trifluoromethyl) phenyl) ethyl-2- (3, 3,3-trifLuoropropyl) malononitrile (the pre- sent compound (57)).

Yield : 39%; 1H-NMR (CDC13, TMS, 8 (ppm)): 1.76 (3H, d), 1.90-2.23 (2H, m), 2.43-2.96 (2H, m), 3.32 (1H, q), 7.48 (2H, d), 7.71 (2H, d).

Production Example 57 First, 0.2 g of (2- (4- (1, 2-dibromoethyl) benzyl)-2- (3, 3,3-trifluoropro- pyl) malononitrile (the present compound (43)) was dissolved in 5 ml of N, N- dimethylformamide, to which O. lg of potassium t-butoxide was added, while stirring under ice cooling. After stirring for 5 hours at room temperature, water was added to the reaction mixture, which was extracted with ethyl acetate. The organic layer was successively washed with water, a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 0.05 g of 2- (4- (2-bromovinyl)- benzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (58)).

Yield: 41%; 1H-NMR (CDC13, TMS, 8 (ppm)): 2.20-2.26 (2H, m), 2.49-2.61 (2H, m), 3.27 (2H, s), 3.51 (2H, s), 5.84 (1H, d), 6.17 (1H, d), 7.34 (2H, d), 7.68 (2H, d).

Production Example 58

Using 0.37 g of (4-fluorobenzyl) malononitrile, 5 ml of N, N-dimethyl- formamide, 0.12 g of sodium hydride (60% in oil), and 0.25 g of 1-brom-2- fluoroethane, and according to the process described in the Production Example 1, there was obtained 0.22 g of 2- (4-fluorobenzyl)-2- (2-fluoroethyl)- malononitrile (the present compound (59)).

Yield: 49%; 'H-NMR (CDCl3, TMS, 8 (ppm)) : 2.40 (2H, dt), 3.28 (2H, s), 4.83 (2H, dt), 7.04-7.14 (2H, m), 7.36-7.40 (2H, m).

Production Example 59 Using 0.49 g of benzylmalononitrile, 15 ml of N, N-dimethylform- amide, 0.14 g of sodium hydride (60% in oil), and 0.33 g of 1,3-dichloropro- pene, and according to the process described in the Production Example 1, there was obtained 0.25 g of 2-benzyl-2- ( (E)-3-chloro-2-propenyl) malono- nitrile (the present compound (60)) as high-polar compound.

Yield: 36%; 1H-NMR (CDC13, TMS, 8 (ppm)): 2.71 (2H, d), 3.21 (2H, s), 6.06 (1H, dt), 6.37 (1H, d), 7.36-7.45 (5H, m).

And there was obtained 0. 28 g of 2-benzyl-2- ( (Z)-3-chloro-2-prope- nyl) malononitrile (the present compound (61)) as low-polar compound.

Yield: 40% ; 1H-NMR (CDCl3, TMS, 8 (ppm)): 2.98 (2H, d), 3.26 (2H, s), 6.00 (1H, dt), 6.49 (1H, d), 7.37-7.52 (5H, m).

Production Example 60 Using 0.30 g of (3,4,4-trifluoro-3-butenyl) malononitrile, 5 ml of N, N- dimethylformamide, 75 mg of sodium hydride (60% in oil), and 0.52 g of 2- chloro-4- (trifluoromethyl) benzylbromide, and according to the process de- scribed in the Production Example 1, there was obtained 0.28 g of 2-(2-cho- ro-4- (trifluoromethyl) benzyl)-2- (3, 4,4-trifluoro-3-butenyl) malononitrile (the

present compound (62)).

Yield: 45%; 1 H-NMR (CDCl3, TMS, 8 (ppm)): 2.30 (2H, t), 2.66-2.88 (2H, m), 3.56 (2H, s), 7.63 (1H, d), 7.70 (1H, d), 7.75 (1H, s).

Production Example 61 Using 1.01 g of (3-chlorobenzyl) malononitrile, 5 ml of N, N-dimethyl- formamide, 1.38 g of potassium carbonate, and 1.44 g of 1-bromo-2-chloro- ethane, and according to the process described in the Production Example 1, there was obtained 0.60 g of 2- (3-chlorobenzyl)-2- (2-chloroethyl) malono- nitrile (the present compound (63)).

Yield: 23%; 1H-NMR (CDCl3, TMS, 8 (ppm)): 2.44 (2H, dd), 3.25 (2H, s), 3.81 (2H, dd), 7.27-7.43 (4H, m).

Production Example 62 Using 0.23 g of (4- (trifluoromethyl) benzyl) malononitrile, 3 ml of N, N-dimethylformamide, 0.05 g of sodium hydride (60% in oil), and 0.13 g of 1-bromo-2-fluoroethane, and according to the process described in the Pro- duction Example 1, there was obtained 0.12 g of 2- (2-fluoroethyl)-2- (4- (trifluoromethyl) benzyl) malononitrile (the present compound (64)).

Yield: 48%; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.43 (2H, dt), 3.58 (2H, s), 4.85 (2H, dt), 7. 54 (2H, d), 7.70 (2H, d).

Production Example 63 Using 0.24 g of (3-bromobenzyl) malononitrile, 3 ml of N, N-di- methylformamide, 0.10 g of sodium hydride (60% in oil), and 0. 13 g of 1- bromo-2-fluoroethane, and according to the process described in the Pro- duction Example 1, there was obtained 0.11 g of 2- (3-bromobenzyl)-2- (2- fluoroethyl) malononitrile (the present compound (65)).

Yield: 33%; 'H-NMR (CDC13, TMS, 8 (ppm)) : 2.38 (2H, dt), 3.26 (2H, s), 3.83 (3H, s), 4.86 (2H, dt), 7.27-7.37 (2H, m) 7.54-7.57 (2H, m).

Production Example 64 Using 0.15 g of (3,4,4-trifluoro-3-butenyl) malononitrile, 5 ml of N, N- dimethylformamide, 38 mg of sodium hydride (60% in oil), and 0.27 g of 2,6- dichloro-4- (trifluoromethyl) benzylbromide, and according to the process de- scribed in the Production Example 1, there was obtained 0.18 g of 2- (2, 6- dichloro-4- (trifluoromethyl) benzyl)-2- (3, 4,4-trifluoro-3-butenyl) malononitrile (the present compound (66)).

Yield: 51% ; 1H-NMR (CDCl3, TMS, # (ppm)): 2.39-2.45 (2H, m), 2.71-2.83 (2H, m), 3.80 (2H, s), 7.70 (2H, s).

Production Example 65 Using 0.25 g of (4-bromo-2-fl. uorobenzyl) malononitrile, 3 ml of N, N- dimethylformamide, 0.10 g of sodium hydride (60% in oil), and 0.13 g of 1- bromo-2-fluoroethane, and according to the process described in the Pro- duction Example 1, there was obtained 0.10 g of 2- (4-bromo-2-fluorobenzyl)- 2- (2-fLuoroethyl) malononitrile (the present compound (67)).

Yield: 33%; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.41 (2H, dt), 3.35 (2H, s), 4.82 (2H, dt), 7.32-7.42 (3H, m).

Production Example 66 Using 0.20 g of (3,4,4-trifluoro-3-butenyl) malononitrile, 5 ml of N, N- dimethylformamide, 50 mg of sodium hydride (60% in oil), and 0.25 g of a- bromo-p-tolunitrile, and according to the process described in the Production Example 1, there was obtained 0.21 g of 2- (4-cyanobenzyl)-2- (3, 4,4-trifluoro- 3-butenyl) malononitrile (the present compound (68)).

Yield: 63% ; 1 H-NMR (CDCl3, TMS, 8 (ppm)): 2.21-2.32 (2H, m), 2.68-2.87 (2H, m), 3.31 (2H, s), 7.54 (2H, d), 7.72 (2H, d).

Production Example 67 Using 0.24 g of (2-bromobenzyl) malononitrile, 3 ml of N, N- dimethylformamide, 0.10 g of sodium hydride (60% in oil), and 0.13 g of 1- bromo-2-fluoroethane, and according to the process described in the Pro- duction Example 1, there was obtained 0.12 g of 2- (2-bromobenzyl)-2- (2- fluoroethyl) malononitrile (the present compound (69)).

Yield: 37%; 1H-NMR (CDCl3, TMS, 8 (ppm)): 2.47 (2H, dt), 3.58 (2H, s), 4.82 (2H, dt), 7.24 (1H, dd), 7.28 (1H, dd), 7.58 (1H, d), 7.65 (1H, d).

Production Example 68 Using 0.21 g of 2,4-difluorobenzyl bromide, 3 ml of N, N-dimethyl- formamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3- trifluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.17 g of 2- (2, 4-difluorobenzyl)- 2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (70)).

Yield: 57%; 1H-NMR (CDCl3, TMS, 8 (ppm)): 2.21-2.26 (2H, m), 2.47-2.59 (2H, m), 3.34 (2H, s), 6.91-7.02 (2H, m), 7.40-7.47 (2H, m).

Production Example 69 Using 0.21 g of 3,5-difluorobenzyl bromide, 3 ml of N, N-dimethyl- formamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3- trifluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.21 g of 2-(3, 5-difLuorobenzyl)- 2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (71)).

Yield: 73%;

'H-NMR (CDC13, TMS, 8 (ppm)): 2.22-2.28 (2H, m), 2.49-2.61 (2H, m), 3.23 (2H, s), 6.87-6.95 (3H, m).

Production Example 70 Using 1.0 g of (4- (trifluoromethyl) benzyl) malononitrile, 8 ml of N, N- dimethylformamide, 0.73 g of cesium carbonate, and 1.0 g of 2, 2,2-trifluoro- ethyl trifluoromethanesulfonate, and according to the process described in the Production Example 1, there was obtained 0.58 g of 2- (2, 2,2-trifluoro- ethyl)-2- (4- (trifluoromethyl) benzyl) malononitrile (the present compound (72)).

Yield: 40%; 1 H-NMR (CDCl3, TMS, 8 (ppm)): 2.84 (2H, q), 3.40 (2H, d), 7.55 (2H, d), 7.72 (2H, d).

Production Example 71 Using 0.50 g of (4- (trifluoromethyl) benzyl) malononitrile, 6 ml of N, N-dimethylformamide, 98 mg of sodium hydride (60% in oil), and 0.46 g of 4-bromo-1, 1, 2-trifluoro-l-butene, and according to the process described in the Production Example 1, there was obtained 0.16 g of 2- (3, 4,4-trifluoro-3- butenyl)-2- (4- (trifluoromethyl) benzyl) malononitrile (the present compound (73)).

Yield: 21%; 1H-NMR (CDCl3, TMS, 8 (ppm)): 2.21-2.27 (2H, m), 2.70-2.79 (2H, m), 3.31 (2H, s), 7.52 (2H, d), 7.71 (2H, d).

Production Example 72 Using 0.50 g of (4- (trifluoromethyl) benzyl) malononitrile, 6 ml of N, N-dimethylformamide, 98 mg of sodium hydride (60% in oil), and 0.43 g of 1-bromo-3, 3, 3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.30 g of 2- (3, 3,3-trifluoropropyl)- 2- (4- (trifluoromethyl) benzyl) malononitrile (the present compound (74)).

Yield: 40%; 1 H-NMR (CDCl3, TMS, 8 (ppm)): 2.23-2.30 (2H, m), 2.47-2.66 (2H, m), 3.32 (2H, s), 7.52 (2H, d), 7.71 (2H, d).

Production Example 73 Using 0.19 g of 2-fluorobenzyl bromide, 3 ml of N, N-dimethylform- amide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3-trifluoro- propyl) malononitrile, and according to the process described in the Pro- duction Example 26, there was obtained 0.17 g of 2- (2-fluorobenzyl)-2- (3, 3,3- trifluoropropyl) malononitrile (the present compound (75)).

Yield: 63%; 1H-NMR (CDCl3, TMS, 5 (ppm)): 2.20-2.26 (2H, m), 2.46-2.62 (2H, m), 3.38 (2H, s), 7.14-7.45 (4H, m).

Production Example 74 Using 0.50 g of (4- (trifluoromethyl) benzyl) malononitrile, 5 ml of N, N-dimethylformamide, 363 mg of cesium carbonate, and 0.63 g of 2,2,3,3,3-pentafluoropropyl trifluoromethanesulfonate, and according to the process described in the Production Example 1, there was obtained 0.20 g of 2- (2, 2,3,3,3-pentafluoropropyl)-2- (4- (trifluoromethyl) benzyl) malononitrile (the present compound (76)).

Yield: 34%; 1 H-NMR (CDCl3, TMS, 5 (ppm)) : 2.78 (2H, t), 3.43 (2H, s), 7.56 (2H, d), 7.75 (2H, d).

Production Example 75 Using 0.50 g of (4- (trifluoromethyl) benzyl) malononitrile, 5 ml of N, N-dimethylformamide, 59 mg of sodium hydride (60% in oil), and 0.77 g of 2,2,3,3,4,4,4-heptafluorobutyl trifluoromethanesulfonate, and according to the process described in the Production Example 1, there was obtained 73 mg of 2- (2, 2,3,3,4,4,4-heptafluorobutyl)-2-(4-(trifluoromethyUbenzyl) malono-

nitrile (the present compound (77)).

Yield: 8%; 1 H-NMR (CDCl3, TMS, 8 (ppm)): 2.82 (2H, t), 3.43 (2H, s), 7.56 (2H, d), 7.73 (2H, d).

Production Example 76 Using 0.50 g of (4- (trifluoromethyl) benzyl) malononitrile, 5 ml of N, N-dimethylformamide, 88 mg of sodium hydride (60% in oil), and 0.53 g of 1-iodo-4, 4,4-trifluorobutane, and according to the process described in the Production Example 1, there was obtained 0.25 g of 2- (4, 4,4-trifluorobutyl)- 2- (4- (trifluoromethyl) benzyl) malononitrile (the present compound (78)).

Yield: 30%; l H-NMR (CDCl3, TMS, 8 (ppm)): 1.99-2.39 (4H, m), 2.18-2.24 (2H, m), 3.26 (2H, s), 7.49 (2H, d), 7.67 (2H, d).

Production Example 77 Using 0.15 g of 3-fluorobenzyl chloride, 3 ml of N, N-dimethylform- amide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3-trifluoro- propyl) malononitrile, and according to the process described in the Pro- duction Example 26, there was obtained 0.11 g of 2- (3-fluorobenzyl)-2- (3, 3,3- trifluoropropyl) malononitrile (the present compound (79)).

Yield: 41%; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.21-2.26 (2H, m), 2.47-2.57 (2H, m), 3.26 (2H, s), 7.08-7.18 (3H, m), 7.38-7.45 (1H, m).

Production Example 78 Using 0.26 g of 2,3,4,5,6-pentafluoaobenzyl bromide, 3 ml of N, N- dimethylformamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3-trifluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.21 g of 2- (2, 3,4,5,6- pentafluorobenzyl)-2- (3, 3,3-trifluoropropyl) malononitrile (the present com-

pound (80)).

Yield: 61%; 'H-NMR (CDCl3, TMS, 8 (ppm)): 2.28-2.34 (2H, m), 2.50-2.68 (2H, m), 3.47 (2H, s).

Production Example 79 Using 0.21 g of 2-chlorobenzyl bromide, 3 ml of N, N-dimethylform- amide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3-trifluoro- propyl) malononitrile, and according to the process described in the Pro- duction Example 26, there was obtained 0.22 g of 2- (2-chlorobenzyl)-2- (3, 3,3- trifluoropropyl) malononitrile (the present compound (81)).

Yield: 78%; 'H-NMR (CDC13, TMS, 8 (ppm)): 2.28-2.34 (2H, m), 2.50-2.62 (2H, m), 3.53 (2H, s), 7.30-7.40 (2H, m), 7.47-7.55 (2H, m).

Production Example 80 Using 0.16 g of 3-chlorobenzyl chloride, 3 ml of N, N-dimethylform- amide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3-trifluoro- propyl) malononitrile, and according to the process described in the Pro- duction Example 26, there was obtained 0.12 g of 2- (3-chlorobenzyl)-2- (3, 3,3- trifluoropropyl) malononitrile (the present compound (82)).

Yield: 42% ; iH-NMR (CDC13, TMS, 8 (ppm)): 2.26-2.31 (2H, m), 2.47-2.62 (2H, m), 3.53 (2H, s), 7.26-7.55 (4H, m).

Production Example 81 Using 0.20 g of 2,4-dichlorobenzyl chloride, 3 ml of N, N-dimethyl- formamide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3- trifluoropropyl) malononitrile, and according to the process described in the Production Example 26, there was obtained 0.23 g of 2- (2, 4-dichlorobenzyl)- 2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (83)).

Yield: 70%; 'H-NMR (CDC13, TMS, # (ppm)): 2.26-2.31 (2H, m), 2.48-2.63 (2H, m), 3.48 (2H, s), 7.35 (1H, dd), 7.47 (1H, d), 7.52 (1H, d).

Production Example 82 Using 0.19 g of 4-methylbenzyl bromide, 3 ml of N, N-dimethylform- amide, 0.05 g of sodium hydride (60% in oil), and 0.17 g of (3,3,3-trifluoro- propyl) malononitrile, and according to the process described in the Pro- duction Example 26, there was obtained 0.20 g of 2- (4-methylbenzyl)-2- (3,3,3-trifluoropropyl) malononitrile (the present compound (84)).

Yield: 76%; 'H-NMR (CDC13, TMS, 8 (ppm)): 2.17-2.27 (2H, m), 2.38 (3H, 1H), 2.48-2.60 (2H, m), 3.23 (2H, s), 7.21-7.27 (4H, m).

Production Example 83 Using 0.22g of (4- (trifluoromethyl) benzyl) malononitrile, 3 ml of N, N- dimethylformamide, 0.05 g of sodium hydride (60% in oil), and 0.31 g of 1- bromo-3-chloropropane, and according to the process described in the Pro- duction Example 1, there was obtained 0.15 g of 2- (3-chloropropyl)-2- (4- (trifluoromethyl) benzyl) malononitrile (the present compound (85)).

Yield: 26% ; 'H-NMR (CDCl3, TMS, # (ppm)): 2.20-2.26 (4H, m), 3.26 (2H, d), 3.68 (2H, dd), 7.51 (2H, d), 7.69 (2H, d).

Production Example 84 Using 0.22 g of 2- (4- (trifluoromethyl) benzyl) malononitrile, 3 ml of N, N-dimethylformamide, 0.05 g of sodium hydride (60% in oil), and 0.33 g of l-bromo-3-chloro-2-methylpropane and according to the process described in the Production Example 1, there was obtained 0.19 g of 2- (3-chloro-2- methylpropyl)-2- (4- (trifluoromethyl) benzyl) malononitrile (the present com- pound (86)).

Yield: 30%; 1H-NMR (CDC13, TMS, 6 (ppm)): 1.45 (3H, d), 1.94 (1H, dd), 2.31 (1H, dd), 2.36-2.43 (1H, m), 3.29 (2H, s), 3.52 (1H, dd), 3.68 (1H, dd), 7.53 (2H, d), 7.69 (2H, d).

Production Example 85 Using 0.22 g of (4- (trifluoromethyl) benzyl) malononitrile, 3 ml of N, N-dimethylformamide, 0.05 g of sodium hydride (60% in oil), and 0.34 g of 1-bromo-4-chlorobutane, and according to the process described in the Pro- duction Example 1, there was obtained 0.20 g of 2- (4-chlorobutyl)-2- (4- (trifluoromethyl) benzyl) malononitrile (the present compound (87)).

Yield: 32%; 'H-NMR (CDCl3, TMS, 8 (ppm)) : 1.92-2.14 (4H, m), 3.27 (2H, s), 2.36- 2.43 (1H, m), 3.29 (2H, s), 3.57 (2H, dd), 7.52 (2H, d), 7.69 (2H, d).

Production Example 86 Using 0.52 g of (3-benzyloxybenzyl) malononitrile, 5 ml of N, N- dimethylformamide, 0.12 g of sodium hydride (60% in oil), and 0.34 g of 1- bromo-3,3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.28 g of 2- (3- (benzyloxy) benzyl)- 2- (3, 3,3-trifluoropropyl) malononitrile (the present compound (88)).

Yield: 38%; 'H-NMR (CDC13, TMS, 8 (ppm)) : 2.05-2.22 (2H, m), 2.47-2.59 (2H, m), 3.24 (1H, q), 5.09 (2H, s), 6.95-7.26 (3H, m), 7.29-7.52 (6H, m).

Production Example 87 Using 0.39 g of 2- (4-methoxybenzyl) malononitrile, 5 ml of N, N- dimethylformamide, 0.12 g of sodium hydride (60% in oil), and 0.34 g of 1- bromo-3,3,3-trifluoropropane, and according to the process described in the Production Example 1, there was obtained 0.15 g of 2- (4-methoxybenzyl)-2- (3,3,3-trifluoropropyl) malononitrile (the present compound (89)).

Yield: 27%; 'H-NMR (CDCl3, TMS, 8 (ppm)) : 2.04-2.22 (2H, m), 2.46-2.63 (2H, m), 3.79 (1H, q), 3.83 (3H, s), 6. 92 (2H, d), 7.27 (2H, d).

The following will describe some production examples for intermedi- ate compounds as reference production examples.

Reference Production Example 1 First, 1.00 g of (4-chloro-a-methylbenzyhdene) malononitrile of the formula: was dissolved in 20 ml of diethyl ether, to which a catalytic amount of copper (I) iodide was added, and while stirring under ice cooling, a solution of methyl magnesium iodide in diethyl ether (prepared from 0.30 g of magne- sium, 10 ml of diethyl ether, and 0.86 ml of methyl iodide) was added drop- wise, followed by stirring for 30 minutes under ice cooling. Then, 10% hydrochloric acid was added to the reaction mixture, which was extracted with ethyl ether. The organic layer was successively washed with 10% hydrochloric acid, a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pres- sure. The residue was subjected to silica gel column chromatography to give 0.74 g of (1-(4-chlorophenyl)-1-methylethyVmalononitrile (the inter- mediate (2)).

Yield: 69%.

Reference Production Example 2 First, 1.02 g of (4-chlorobenzylidene) malononitrile was dissolved in 20 ml of tetrahydrofuran, to which a catalytic amount of copper (I) iodide was added, and while stirring under ice cooling, a solution of isopropyl magne-

sium bromide in tetrahydrofuran (prepared from 0.34 g of magnesium, 10 ml of tetrahydrofuran, and 1.46 ml of isopropyl bromide) was added dropwise, followed by stirring for 30 minutes under ice cooling. Then, 10% hydro- chloric acid was added to the reaction mixture, which became acidic and was extracted with ethyl ether. The organic layer was successively washed with 10% hydrochloric acid, a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 0.66 g of (1- (4-chlorophenyl)-2-methylpropyl) malononitrile (the inter- mediate (3)).

Yield: 52%.

Reference Production Example 3 First, 4.44 g of (4-(trifluoromethyl) benzylidene) malononitrile was dissolved in 20 ml of ethanol, and while stirring at room temperature, a sus- pension of 0.19 g of sodium borohydride in 5 ml of ethanol was added drop- wise, followed by stirring at room temperature for 30 minutes. Then, 10% hydrochloride acid was added to the reaction mixture, which became acidic and was extracted with diethyl ether. The organic layer was successively washed with 10% hydrochloric acid, a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 2.30 g of (4- (trifluoromethyl) benzyl) malononitrile (the intermediate (4)).

Yield: 51%.

Reference Production Example 4 First, 3.00 g of (4-chloro-a-methylbenzylidene) malononitrile was dissolved in 20 ml of ethanol, and while stirring at room temperature, a sus- pension of 0.15 g of sodium borohydride in 5 ml of ethanol was added drop-

wise, followed by stirring at room temperature for 30 minutes. Then, 10% hydrochloride acid was added to the reaction mixture, which was extracted with diethyl ether. The organic layer was successively washed with 10% hydrochloric acid, a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pres- sure. The residue was subjected to silica gel column chromatography to give 1. 70 g of (1- (4-chlorophenyl) ethyl) malononitrile (the intermediate (6)).

Yield: 56%.

Reference Production Example 5 First, 10.0 g of 4- (trifluoromethoxy) benzaldehyde and 3.50 g of malo- nonitrile were dissolved in 60 ml of 70% (w/w) aqueous ethanol, to which a catalytic amount of benzyltrimethylammonium hydroxide was added, and the mixture was stirred at room temperature overnight. Then, a saturated aqueous sodium chloride solution was added to the reaction mixture, which was extracted with ethyl acetate. The organic layer was washed with a saturated aqueous sodium chloride solution, dried over anhydrous magne- sium sulfate, and then concentrated under reduced pressure. The residue was recrystallized from t-butyl methyl ether and hexane to give 9.24 g of (4- (trifluoromethoxy) benzylidene) malononitrile.

Yield: 74%; 1 H-NMR (CDCl3, TMS, 8 (ppm)): 7.37 (2H, d), 7.76 (1H, s), 7.98 (2H, d).

Then, 2.61 g of (4- (trifluoromethoxy) benzylidene) malononitrile was dissolved in 20 ml of tetrahydrofuran, and while stirring at room tempera- ture, a suspension of 0.11 g of sodium borohydride in 5 ml of ethanol was added dropwise, followed by stirring at room temperature for 30 minutes.

Then, 10% hydrochloric acid was added, and the mixture was extracted with diethyl ether. The organic layer was successively washed with 10% hydro-

chloric acid, a saturated aqueous sodium chloride solution, dried over anhy- drous magnesium sulfate, and then concentrated under reduced pressure.

The residue was subjected to silica gel column chromatography to give 2.20 g of (4- (trifluoromethoxy) benzyl) malononitrile (the intermediate (7)).

Yield: 83%.

Reference Production Example 6 Using 1.19 g of (4-(trifluoromethoxy) benzylidene) malononitrile, 20 ml of tetrahydrofuran, a catalytic amount of copper (I) iodide, and a solution of isopropyl magnesium bromide in tetrahydrofuran (prepared from 0.39 g of magnesium, 10 ml of tetrahydrofuran, and 2.36 g of isopropyl bromide), and according to the process described in Reference Production Example 2, there was obtained 0.77 g of (1- (4- (trifluoromethoxy) phenyl)-2-methylpropyl) malo- nonitrile (the intermediate (8)).

Yield: 55%.

Reference Production Example 7 Using 1.19 g of (4- (trifluoromethoxy) benzylidene) malononitrile, 20 ml of tetrahydrofuran, a catalytic amount of copper (I) iodide, and 12.5 ml of a solution of methyl magnesium bromide in tetrahydrofuran (about 1 M, available from Tokyo Kasei Kogyo Co., Ltd), and according to the process described in Reference Production Example 2, there was obtained 0.76 g of (1- (4- (trifluoromethoxy) phenyl) ethyl) malononitrile (the intermediate (10)).

Yield: 60%.

Reference Production Example 8 First, 4.46 g of (3,4-dichlorobenzylidene) malononitrile was dissolved in 20 ml of tetrahydrofuran, and while stirring at room temperature, a sus- pension of 0.19 g of sodium borohydride in 5 ml of ethanol was added drop- wise, followed by stirring at room temperature for 30 minutes. Then, 10% hydrochloride acid was added and the mixture was extracted with diethyl

ether. The organic layer was successively washed with 10% hydrochloric acid, a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 3.15 g of (3,4-dichlorobenzyl) malononitrile (the intermediate (12)).

Yield: 70%.

Reference Production Example 9 Using 4.46 g of (2,4-dichlorobenzylidene) malononitrile, 20 ml of tetrahydrofuran, and a suspension of 0.19 g of sodium borohydride in 5 ml of ethanol, and according to the process described in Reference Production Example 8, there was obtained 3.10 g of (2,4-dichlorobenzyl) malononitrile (the intermediate (13)).

Yield: 69%.

Reference Production Example 10 First, 10.0 g of 4-(trifluoromethylthio) benzaldehyde and 2.92 g of malononitrile were dissolved in 50 ml of 70% (w/w) aqueous ethanol, to which a catalytic amount of benzyltrimethylammonium hydroxide was added, and the mixture was stirred at room temperature overnight. Then, a saturated aqueous sodium chloride solution was added to the reaction mixture, which was extracted with ethyl acetate. The organic layer was washed with a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pres- sure. The residue was recrystallized with a solvent system consisting of t- butyl methyl ether and hexane to give 10.5 g of (4-(trifluoromethylthio) ben- zylidene) malononitrile.

Yield: 85% ; 1 H-NMR (CDCl3, TMS, 8 (ppm)): 7.78 (1H, s), 7.79 (2H, d), 7.93 (2H, d).

Then, 8.00 g of (4- (trifluoromethylthio) benzylidene) malononitrile and 3.35 g of benzaldehyde were dissolved in 320 ml of ethanol, and while stir- ring at room temperature, 3.41g of phenylenediamine was slowly added, and the mixture was stirred at room temperature for 5 hours. Then, the reac- tion mixture was concentrated, 300 ml of t-butyl methyl ether was added, and insoluble matters were filtered. The filtrate was concentrated and the resulting residue was subjected to silica gel chromatography to give 6.22 g of (4- (trifluoromethylthio) benzyl) malononitrile (the intermediate (14)).

Yield: 77%.

Reference Production Example 11 First, 6.98 g of malononitrile, 681 mg of tetrabutylammonium bromide, and 10 g of 4-bromo-1, 1, 2-trifluoro-1-butene were mixed, and while stirring at 0°C under an atmosphere of nitrogen, 5.92 g of potassium t- butoxide was slowly added. The mixture was further stirred at room temperature for 12 hours. Then, the reaction mixture was poured into water, followed by extraction with t-butyl methyl ether. The organic layer was washed with water, a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 1.31 g of (3,4,4-trifluoro-3-butenyl) malononitrile (the intermediate (17)).

Yield: 26%.

Reference Production Example 12 Using 4.00 g of (4- (trifluoromethoxy) benzylidene) malononitrile, 30 ml of tetrahydrofuran, 175 mg of copper (I) bromide dimethyl sulfide complex, and 26 ml of a solution (0.98 M) of vinyl magnesium bromide in tetrahydro- furan, and according to the process described in Reference Production Ex- ample 2, there was obtained 1.60 g of (1- (4-trifluoromethoxyphenyl))-2-pro- penylmalononitrile (the intermediate (18)).

Reference Production Example 13 First, 27.6 g of malononitrile was dissolved in 50 ml of N, N-di- methylformamide, and 27.6 g of potassium carbonate was added at room temperature, followed by stirring for 1 hour. Then, a solution of 17.7 g of 1- bromo-3,3,3-trifluoropropane dissolved in 20 ml of N, N-dimethylformamide was added dropwise slowly, followed by stirring for 1 hour. Then, water was added to the reaction mixture, which was extracted with diethyl ether. The organic layer was successively washed with water, a saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 11.3 g of (3,3,3-trifluoropropyl) malono- nitrile (the intermediate (16)).

Yield:68%.

Reference Production Example 14 First, 20 ml of tetrahydrofuran was added dropwise slowly to the mixture of 0.50 g of dihydro tetrakis (triphenylphosphine) ruthenium and 3.00 g of (4- (trifluoromethyl) benzyl) malononitrile under an atmosphere of nitro- gen, followed by stirring for 15 minutes. Then, 0.82 g of acrolein was added dropwise slowly, followed by stirring for 1 hour at room temperature and then the solvent was distilled away. The residue was subjected to silica gel column chromatography to give 1.58 g of 2- (2-formylethyl)-2- (4- (trifluoro- methyl) benzyl) malononitrile (the intermediate (19)).

Yield: 42%.

Reference Production Example 15 First, 0.01 g of sodium borohydride was added to the solution of 0.30 g of 2- (2-formylethyl)-2- (4- (trifluoromethyl) benzyl) malononitrile (the inter- mediate (19)) in ethanol at 0 °C, followed by stirring for 5 hours at room temperature. Then, water was added to the reaction mixture, which was

extracted with ethyl acetate. The organic layer was washed with a satu- rated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 0.19 g of 2- (3-hydroxypropyl)-2- (4- (trifluoromethyl) benzyl) malononitrile (the intermediate (20)).

Yield: 61%.

Reference Production Example 16 Using 1.42 g of (2,4,6-trifluorobenzyliden) malononitrile, 50 ml of ethanol and 0.08 g of sodium borohydride, and according to the process described in the Reference Production Example 3, there was obtained 1.29 g of (2,4,6-trifluorobenzyl) malononitrile (the intermediate (21)).

Yield: 90%.

Reference Production Example 17 Using 10.0 g of (3,4-difluorobenzyliden) malononitrile, 200 ml of ethanol and 0.6 g of sodium borohydride, and according to the process described in the Reference Production Example 3, there was obtained 8.05 g of (3,4-difluorobenzyl) malononitrile (the intermediate (23)).

Yield: 80%.

Reference Production Example 18 Using 10.0 g of (2-chloro-4-fluorobenzyliden) malononitrile, 200 ml of ethanol and 0.6 g of sodium borohydride, and according to the process described in the Reference Production Example 3, there was obtained 0.55 g of (2-chloro-4-fluorobenzyl) malononitrile (the intermediate (24)).

Yield: 53%.

Reference Production Example 19 First, 0.93 g of 3-bromobenzaldehyde and 0.33 g of malononitrile were dissolved in 5 ml of ethanol, to which 1.5 ml of water was added, followed by stirring at room temperature for 4 hours. Then, after cooling at

- 5°C, a suspension of 57 mg of sodium borohydride in 3 ml of ethanol was added dropwise, followed by stirring at-5°C for 30 minutes. 10% hydro- chloride acid was added to the reaction mixture, which was extracted with ethyl acetate. The organic layer was washed with water, dried over anhy- drous magnesium sulfate, and then concentrated under reduced pressure.

The residue was subjected to silica gel column chromatography to give 0.94 g of (3-bromobenzyl) malononitrile (the intermediate (28)).

Yield: 83%.

Reference Production Example 20 Using 1.02 g of 2-fluoro-4-bromobenzaldehyde, 0.33 g of malono- nitrile, 8 ml of ethanol, 1.5 ml of water and 57 mg of sodium borohydride, and according to the process described in the Reference Production Example 19, there was obtained 1.21 g of (2-fluoro-4-bromobenzyl) malononitrile (the intermediate (29)).

Yield: 95%.

Reference Production Example 21 Using 1.06 g of 3- (benzyloxy) benzaldehyde, 0.33 g of malononitrile, 8 ml of ethanol, 1.5 ml of water and 57 mg of sodium borohydride, and accord- ing to the process described in the Reference Production Example 19, there was obtained 1.20 g of (3- (benzyloxy) benzyl) malononitrile (the intermediate (31)).

Yield: 92%.

Reference Production Example 22 Using 1.0 g of (2,6-dichloro-4-(trifluoromethyl) benzyliden) malono- nitrile, 20 ml of ethanol and 0.03 g of sodium borohydride, and according to the process described in the Reference Production Example 3, there was obtained 0.97 g of (2,6-dichloro-4-(trifluoromethyl) benzyl) malononitrile (the intermediate (32)).

Yield: 90%.

The intermediate compounds used in the production of the present compounds are shown below with the compound numbers and physical data.

Intermediate (1) (4-Chlorobenzyl) malononitrile m. p.: 96. 9°C.

Intermediate (2) (1-(4-Chlorophenyl)-1-methylethyl) malononitrile nd22.0:1.5372.

Intermediate (3) (1- (4-Chlorophenyl)-2-methylpropyl) malononitrile nD 21 5 : 1.5289.

Intermediate (4) (4-(Trifluoromethyl)benzyl)malononitrile m. p.: 79.1°C.

Intermediate (5) <BR> <BR> (4-Cyanobenzyl) malononitrile m. p.: 118.7°C.

Intermediate (6) (1- (4-Chlorophenyl) ethyl) malononitrile

nD"' : 1.5349.

Intermediate (7) (4-(Trifluoromethoxy)benzyl)malononitrile

m. p.: 88. 3°C.

Intermediate (8) (1- (4- (Trifluoromethoxy) phenyl-2-methylpropyl) malononitrile

1 H-NMR (CDCl3, TMS, 5 (ppm)): 0.83 (3H, d), 1.16 (3H, d), 2.29-2.45 (1H, m), 2.87 (lH, dd), 4.18 (1H, d), 7.25-7.30 (2H, m), 7.38-7.42 (2H, m).

Intermediate (9) (4-Bromobenzyl)malononitrile Intermediate (10) (1-(4-(Trifluoromethoxy)phenyl)ethyl)malononitrile

1 H-NMR (CDCl3, TMS, 5 (ppm)): 1.65 (3H, d), 3.49 (1H, dq), 3.85 (1H, d), 7.24-7.29 (2H, m), 7.38-7.42 (2H, m).

Intermediate (11) (4-Fluorob enzyl) malononitrile m. p.: 117.2°C.

Intermediate (12) (3,4-Dichlorobenzyl) malononitrile m. p.: 83. 3°C.

Intermediate (13) (2,4-Dichlorobenzyl)malononitrile m. p.: 62.5°C.

Intermediate (14) <BR> <BR> (4- (Trifluoromethylthio) benzyl) malononitrile

1 H-NMR (CDC13, TMS, 6 (ppm)): 3.15 (2H, d), 3.95 (1H, t), 7.37 (2H, d), 7.70 (2H, d).

Intermediate (15) Benzylmalononitrile m. p.: 89.1 °C.

Intermediate (16) (3,3,3-Trifluoropropyl)malononitrile 1 H-NMR (CDCl3, TMS, # (ppm)) : 2.32-2.42 (2H, m), 2.43-2.52 (2H, m), 3.91 (1H, t).

Intermediate (17) (3,4, 4-Trifluoro-3-butenyl) malononitrile 1H-NMR (CDCl3, TMS, 8 (ppm)): 1.18-1.28 (1H, m), 2.27-2.34 (2H, m), 2.58-2.72 (2H, m), 3.88 (1H, t).

Intermediate (18) (1-(4-Trifluoromethoxyphenyl))-2-propenyl)malononitrile 1 H-NMR (CDCl3, TMS, 6 (ppm)): 3.95-4.03 (2H, m), 5.40-5.53 (2H, m), 6.08-6.19 (1H, m), 7.28 (2H, d), 7.39 (2H, d).

Intermediate (19) 2- (2-formylethyl)-2- (4- (trifluoromethyl) benzyl) malononitrile

1 H-NMR (CDCl3, TMS, 5 (ppm)): 2.35 (2H, t), 2.94 (2H, t), 3.30 (2H, s), 7.53 (2H, d), 7.69 (2H, d), 9.82 (1H, s).

Intermediate (20) 2- (3-hydroxypropyl)-2- (4- (trifluoromethyl) benzyl) malononitrile 1H-NMR (CDCl3, TMS, # (ppm)) : 1.94-2.01 (2H, m), 2. 12-2.17 (3H, m), 3.28 (2H, s), 3.74 (2H, t), 7.53 (2H, d), 7.67 (2H, d).

Intermediate (21) (2,4,6-trifluorobenzyl) malononitrile 1 H-NMR (CDC13, TMS, 8 (ppm)): 3.41 (2H, d), 4.03 (1H, t), 6.79 (2H, dd).

Intermediate 22 (4-nitrobenzyl) malononitrile m. p.: 155.7°C Intermediate 23 (3, 4-difluorobenzyl) malononitrile

1H-NMR (CDCl3, TMS, # (ppm)): 3.28 (2H, d), 3.94 (1H, t), 7.06- 7.24 (3H, m).

Intermediate 24 (2-chloro-4-fluorobenzyl) malononitrile 1 H-NMR (CDCl3, TMS, b (ppm)): 3.36 (2H, d), 3.97 (1H, t), 6.97 (1H, dd), 7.13 (1H, dd), 7.29 (1H, dd).

Intermediate 25 (4-methoxybenzyl) malononitrile m. p.: 89.6°C Intermediate 26 (1- (4-trifluoromethyl) phenyl) ethyl) malononitrile 1 H-NMR (CDC13, TMS, 8 (ppm)) : 1.68 (3H, d), 3.53 (1H, dq), 3.89 (1H, d), 7.68 (2H, d), 7.89 (2H, d).

Intermediate 27 (3-chlorob enzyl) malononitrile nD19.5 : 1.5403 Intermediate 28 (3-bromobenzyl) malononitrile

1 H-NMR (CDC13, TMS, 8 (ppm)): 3.26 (2H, d), 3.93 (1H, t), 7.26- 7.30 (2H, m), 7.48 (1H, bs), 7.51-7.55 (1H, m).

Intermediate 29 (2-fluoro-4-bromobenzyl) malononitrile 1 H-NMR (CDC13, TMS, 8 (ppm)): 3.33 (2H, d), 3.98 (1H, t), 7.23 (1H, d), 7.32-7.38 (2H, m).

Intermediate 30 (2-bromobenzyl) malononitrile 1 H-NMR (CDC13, TMS, 8 (ppm)): 3.45 (2H, d), 4.15 (1H, t), 7.23- 7.29 (1H, m), 7.35-7.42 (2H, m), 7.62 (1H, d).

Intermediate 31 (3- (benzyloxy) benzyl) malononitrile 1H-NMR (CDCl3, TMS, # (ppm)): 3.24 (2H, d), 3.88 (1H, t), 5.07 (2H, s), 6.89-6.99 (3H, m), 7.28-7.45 (6H, m).

Intermediate 32 (2,6-dichloro-4- (trifluoromethyl) benzyl) malononitrile

1 H-NMR (CDCl3, TMS, 8 (ppm)): 3.78 (2H, d), 4.23 (1H, t), 7.68 (2H, s).

Specific examples of the present compounds are shown in Table 1 with the compound numbers. TABLE 1 The compounds of formula (Y) : No. R1 R2 m R3 (R5)n R6 1 H H 1 ci 2 H H 1 CCl=CH2 - SCF3 3 H H 1 CFs-H 4 H H 2 CF=CF2 - H 5 H H 1 CFzCF3-OCFs 6 H H 2 CFs-C (=0) CHs 7 H H 2 CFs 2, 6-Cl2 CFs 8 H H 2 CF2CF3 - CF3 9 H H 2 CF3-Br 10 H H 2 CF2CF3 - OCF3 11 H H 2 CHF2 - CF3 12 H H 2 CF3 - H 13 H H 2 CF3 - SCF3 14 H H 2 CH2F - CF3 15 H H 2 CFs-Cl 16 H H 2 CF3 - F 17 H H 2 CF3 2,6-F2 F 18 H H 2 CF3 - NO2 19 H H 2 CF3 3-F F TABLE 1 (contn'd) No. R'R2 m R3 (R5) n R6 20 H H 1 CH=CCl2 - Cl 21 H H 2 CF3 3-Cl Cl 22 H H 2 CFs-CN 23 H H 2 CF2CFa-Cl 24 H H 1 CH2F - Cl 25 H H 1 CF2CHF2 - Cl 26 H H 2 CF3 - I 27 H H 2 CF3 - CH=CH2 28 H H 1 CH=CCl2 - OCF3 29 H H 1 CH=CBr2 - OCF3 30 H H 2 CFs 3-NO2 CH3 31 H H 2 CF3 - CH2CH3 32 H H 2 CFs 3-OCH3 H 33 H H 2 CF3 C (CH3) 3 34 H H 2 CF3 - SCH3 35 H H 2 CF3 - CH(CH3) 2 36 H H 2 CF3 3-CF3 H 37 H H 2 CF3 3-CH3 H 38 H H 2 CF3 2-Cl NO2 39 H H 2 CF3 3-Cl CFs 40 H H 2 CF3 2, 3-(OCH3)2 H 41 H H 2 CF3 2-Cl CF3 42 H CH3 2 CF3 - Cl 43 H H 2 CFs-CHBrCH2Br 44 H H 2 CF3 2-Cl F TABLE 1 (contn'd) No. R1 R2 m R3 (R5)n R6 45 H H 2 CFs 3-CH3 NO2 46 H H 1 CH2F-CN 47 H H 1 CH2F - NO2 48 H H 1 CH2=CFCF3 - CF3 49 H H 2 CF=CF2-OCFs 50 H H 2 CF3 - OCF3 51 H H 1 CH2F-Br 52 H H 1 CH2F - OCH3 53 H CH3 1 CH2F - Cl 54 H H 2 CF=CF2 - SCF2 55 H H 1 CH=CCl2 - CF3 56 H H 1 CH=CCl2 - CN 57 H CH3 2 CF3 - CF3 58 H H 2 CFs-CH=CHBr 59 H H 1 CH2F - F 60 H H 1 (E)-CH=CHCl - H 61 H H 1 (Z)-CH=CHCl - H 62 H H 2 CF=CF2 2-Cl CFs 63 H H 1 CH2Cl 3-Cl H 64 H H 1 CH2F - CF3 65 H H 1 CHaF 3-Br H 66 H H 2 CF=CF2 2,6-Cl2 CF3 67 H H 1 CH2F 2-F Br 68 H H 2 CF=CF2-CN 69 H H 1 CH2F 2-Br H TABLE 1 (contn'd) No. R1 R2 m R3 (R5)n R6 70 H H 2 CFa 2-F F 71 H H 2 CF3 3, 5-F2 H 72 H H 1 CF3 - CF3 73 H H 2 CF=CF2-CFa 74 H H 2 CFs-CFs 75 H H 2 CF3 2-F H 76 H H 1 CF2CF3 - CF3 77 H H 1 CF2CF2CF3 - CF3 78 H H 3 CF3 - CF3 79 H H 2 CF3 3-F H 80 H H 2 CF3 2,3,5,6-F4 F 81 H H 2 CFa 2-Cl H 82 H H 2 CFs 3-Cl H 83 H H 2 CF3 2-Cl Cl 84 H H 2 CF3 - CH3 85 H H 2 CH2Cl - CF3 86 H H 1 CH (CH3) CH2Cl-CFs 87 H H 3 CH2Cl-CFs 88 H H 2 CFa 3-OCH2Ph H 89 H H 2 CF3 - OCH3 90 H H 2 CF3 3-F CF3 91 H CH3 2 CF3 3-F CF3 92 H H 2 CF3 3-CH3 CN 93 H H 2 CF3 3-CF3 Cl 94 H CH3 2 CF3 3-CF3 Cl TABLE 1 (contn'd) No. R1 R2 m R3 (R5)n R6 95 H H 2 CF3 3-Cl NO2 96 H H 2 CFs 3-F NO2 97 H H 2 CF3 3-F CN 98 H CH3 2 CF3 3-F CN 99 H H 2 CFs 3,5-F2 CF3 100 H H 2 CF3 3-Cl F 101 H CH3 2 CF3 3-Cl F 102 H H 2 CF3 3-Cl F 103 H CH3 2 CF3 3-F Cl 104 H H 2 CFs 3, 5-Cl2 Cl 105 H H 2 CF3 3,5-F2 F 106 H H3 2 CF3 - OCF3 107 H CH3 2 CF3 - SCF3 108 H H 3 CF3 - OCF3 109 H H 3 CF3 - SCF3 110 H H 3 CF3 - NO2 111 H H 3 CFs-CN 112 H CH3 3 CF3 - CN 113 H H 3 CF3 - Cl 114 H CHs 3 CF3 - Cl 115 H H 3 CF3 - F 116 H H 3 CF3 3-Cl CFs 117 H CH3 3 CF3 3-Cl CF3 118 H H 3 CF3 3-F CF3 119 H CH3 3 CF3 3-F CF3 TABLE 1 (contn'd) No. R1 R2 m R3 (R5)n R6 120 H H 3 CFs 3-Cl F 121 H CH3 3 CF3 3-Cl F 122 H H 3 CF3 3-Cl CN 123 H H 3 CF3 3-Cl Cl 124 H CH3 3 CF3 3-Cl Cl 125 H H 3 CF3 3-F F 126 H CH3 3 CF3 3-F F 127 H H 3 CF3 3-CF3 H 128 H H 2 CF2CF3 - OCF3 129 H H 2 CF2CF3 - SCF2 130 H H 2 CFzCFs-N02 131 H H 2 CF2CFs-CN 132 H CH3 2 CF2CF3 - CN 133 H H 2 CF2CF3 - Cl 134 H CH3 2 CF2CF3 - Cl 135 H H 2 CF2CF3 - F 136 H H 2 CF2CF3 3-Cl CF 137 H CH3 2 CF2CFs 3-Cl CF3 138 H H 2 CFzCFs 3-F CF 139 H CH3 2 CF2CF3 3-F CF3 140 H H 2 CFzCFs 3-Cl F 141 H CH3 2 CF2CF3 3-Cl F 142 H H 2 CF2CF3 3-Cl CN 143 H H 2 CF2CF3 3-Cl Cl 144 H CHs 2 CF2CF3 3-Cl Cl TABLE 1 (contn'd) No. R1 R2 m R3 (R5)n R6 145 H H 2 CF2CF3 3-F F 146 H CH3 2 CF2CF3 3-F F 147 H H 2 CFzCFs 3-CF3 H 148 H CH3 2 CF3 3-Cl Cl 149 H CH3 2 CF3 3-F F 150 H CH3 2 CFs 3-Cl CF3 151 H CH3 2 CF3 3-CF3 Cl 152 H H 2 CF3 3-CF3 Cl 153 H CH3 2 CF3 3-CF3 H 154 H H 1 CH=CFz-CFs 155 H H 1 CH=CF2 - Cl 156 H CH3 1 CH=CF2 - F 157 H H 1 CH=CF2-CN 158 H H 1 CH=CF2 - NO2 159 H CH (CH3) 2 1 CH=CF2-SCFa 160 H H 1 CH=CFa-OCFs 161 H H 1 CH=CF2 3-Cl Cl 162 H H 1 CH=CF2 3-Cl F 163 H H 1 CH=CF2 3-F F 164 H H 1 CH=CF2 3-Cl CF3 165 H H 1 CH=CF2 3-F CF3 166 H H 2 CH=CF2 - CF3 167 H H 2 CH=CF2 - Cl 168 H H 2 CH=CF2-F 169 H H 2 CH=CF2 - CN TABLE 1 (contn'd) No. R1 R2 m R3 (R5)n R6 170 H CH3 2 CH=CF2 - NO2 171 H H 2 CH=CF2 - SCF2 172 H CH (CH3) 2 2 CH=CF2 - OCF3 173 H H 2 CH=CF2 3-Cl Cl 174 H H 2 CH=CF2 3-Cl F 175 H H 2 CH=CF2 3-F F 176 H H 2 CH=CF2 3-Cl CFs 177 H H 2 CH=CF2 3-F CF3 178 H H 2 CF2CH3 - CF3 179 H H 2 CF2CH3-Cl 180 H H 2 CF2CH3 - F 181 H H 2 CF2CH3 - CN 182 H H 2 CF2CH3 - NO2 183 H CH3 2 CF2CH3 - SCF3 184 H CH (CH3)2 2 CF2CH3 - OCF3 185 H H 2 CF2CH3 3-Cl Cl 186 H H 2 CF2CH3 3-Cl F 187 H H 2 CF2CH3 3-F F 188 H H 2 CF2CH3 3-Cl CFs 189 H H 2 CF2CH3 3-F CFs 190 H H 2 C (CF3) =CH2 - CF3 191 H H 2 C (CF3) =CH2 - Cl 192 H H 2 C (CF3) =CH2-F 193 H H 2 C (CF3) =CH2 - CN 194 H CH (CH3) 2 2 C (CF3) =CH2 - NO2 TABLE 1 (contn'd) No. R1 R2 m R3 (R5)n R6 195 H H 2 C (CF3) =CH2 - SCF3 196 H CH3 2 C (CF3) = CH2 - OCF3 197 H H 2 C (CF3) =CH2 3-Cl Cl 198 H H 2 C (CF3) =CH2 3-Cl F 199 H H 2 C (CF3) =CH2 3-F F 200 H H 2 C (CF3)=CH2 3-Cl CF3 201 H H 2 C (CF3) =CH2 3-F CF3 202 H H 1 C (CF3) =CH2-CF3 203 H H 1 C (CF3) =CH2 - Cl 204 H H 1 C (CF3) =CH2-F 205 H H 1 C (CF3) =CH2-CN 206 H H 1 C (CF3) =CH2 - NO2 207 H H 1 C (CF3) =CH2 - SCF3 208 H H 1 C (CF3)=CH2 - OCF3 209 H H 1 C (CF3) =CH2 3-Cl Cl 210 H H 1 C(CF3) =CH2 3-Cl F 211 H H 1 C(CF3)=CH2 3-F F 212 H H 1 C (CF3) =CH2 3-Cl CF 213 H H 1 C (CF3) =CH2 3-F CFs 214 H H 2 CH2Cl-CFs 215 H H 2 CH2Cl - CN 216 H H 2 CH2Cl 3-Cl Cl 217 H H 3 CHzF-NOz 218 H H 3 CH2F 3-Cl Cl 219 H H 3 CH2F 3-Cl F TABLE 1 (contn'd) No. R1 R2 m R3 (RE) n R6 X 220 H H 3 CH2F 3-Cl CFs 221 H OCH3 2 CF3 - CF3 222 H OCH (CH3) 2 2 FA-CON 223 H CN 2 CF3 - Cl

The following will describe some formulation examples wherein parts represent parts by weight. The present compounds are designated by their compound numbers shown in Table 1.

Formulation Example 1 Nine parts of each of the present compounds (1) to (87) is dissolved in 37.5 parts of xylene and 37.5 parts of dimethylformamide, and 10 parts of polyoxyethylene styryl phenyl ether and 6 parts of calcium dodecylbenzene- sulfonate are added thereto, followed by well stirring and mixing, to give an emulsifiable concentrate for each compound.

Formulation Example 2 To 40 parts of each of the present compounds (1) to (87) is added 5 parts of Solpol @ 5060 (llDho Chemical Industry Co., Ltd.), followed by well mixing, and 32 parts of Carplex &num 80 (synthetic hydrated silicone oxide fine powder; Shionogi & Co., Ltd.) and 23 parts of 300 mesh diatomaceous earth are added, which is mixed with a mixer to give a wettable powder for each compound.

Formulation Example 3 To 3 parts of each of the present compounds (1) to (87) are added 5 parts of synthetic hydrated silicon oxide fine powder, 5 parts of sodium dodecylbenzenesulfonate, 30 parts of bentonite, and 57 parts of clay, followed by well stirring and mixing, and an appropriate amount of water is added to

this mixture, followed by further stirring, granulation with a granulator, and air drying, to give a granule for each compound.

Formulation Example 4 First, 4.5 parts of each of the present compounds (1) to (87), 1 part of synthetic hydrated silicon oxide fine powder, 1 part of Doriresu B (Sankyo Co., Ltd.) as a flocculant, and 7 parts of clay are well mixed with a mortar, followed by stirring and mixing with a mixer. To the resulting mixture is added 8G. 5 parts of cut clay, followed by well stirring and mixing, to give a dust for each compound.

Formulation Example 5 Ten parts of each of the present compounds (1) to (87), 35 parts of white carbon containing 50 parts of polyoxyethylene alkyl ether sulfate am- monium salt, and 55 parts of water are mixed and pulverized by the wet grinding method to give a formulation for each compound.

Formulation Example 6 First, 0.5 parts of each of the present compounds (1) to (87) is dis- solved in 10 parts of dichloromethane, which is mixed with 89.5 parts of 7 ISOPAR 9 (isoparaffin ; Exxon Chemical Co.) to give an oil formulation for each compound.

Formulation Example 7 First, 0.1 parts of the present compounds (1) to (79) and 49.9 parts of NEO-CHIOZOL (Chuo Kasei K. K.) are put into an aerosol can, to which an aerosol valve is attached. Then, 25 parts of dimethyl ether and 25 parts of LPG are filled in the aerosol can, followed by shaking and attachment of an actuator, to give an oil-based aerosol.

Formulation Example 8 First, 0.6 parts of each of the present compounds (1) to (79), 0.01 parts of BHT, 5 parts of xylene, 3.39 parts of deodorized kerosine, and 1 part

of an emulsifier (Atmos 300; Atmos Chemical Co.) are mixed to become a solution. Then, this solution and 50 parts of distilled water are filled in an aerosol can, to which a valve part is attached, and 40 parts of a propellant (LPG) is filled under pressure through the valve in the aerosol can to give a water-based aerosol.

The following test example will demonstrate that the present com- pounds are useful as the active ingredients of pesticide compositions. The present compounds are designated by their compound numbers shown in Table 1.

Test Example 1 Pesticidal Test against Nilaparvata lugens Each formulation of the compound 2,5,7,8,9,10,11,12,13,15,16, 19,21,22,23,24,25,26,27,30,31,32,33,34,35,36,37,38,39,40,41, 43, 44,46,49,50,53,55,57,58,59,61,64,66,68,72,73,74,76,78 and 89 obtained according to Formulation Example 5 was diluted with water so that the active ingredient concentration came to 500 ppm to prepare a test liquid for each compound. And each formulation of the compound 17 and 76 obtained according to Formulation Example 5 was diluted with water so that the active ingredient concentration came to 200 ppm to prepare a test liquid for each compound.

Fifty grams of molding Bonsoru 2 (available from Sumitomo Chemi- cal Co., Ltd.) was put into a polyethylene cup, and 10 to 15 seeds of rice were planted in the polyethylene cup. Then rice plants were grown until the second foliage leaves developed and then cut into the same height of 5 cm.

The test liquid, which had been prepared as described above, was sprayed at the rate of 20 ml/cup onto these rice plants. After the test liquid sprayed onto the rice plants were dried, the polyethylene cup with the rice plants was placed in a large polyethylene cup and 30 first-instar larvae of Nilaparvata lugens (brown planthopper) were set free in the large polyethylene cup,

which was then kept covered and left in a greenhouse at 25°C. On the 6th day after the release of larvae of Nilaparvata lugens, the number of parasitic Nilaparvata lugens on the rice plants was examined.

As a result, in the treatment with each of the compounds described above, the number of parasitic pests on the 6th day after the treatment was not greater than 3.

Test Example 2 Pesticidal Test against Nilaparvata lugens Each formulation of the compound 5, 8,9,10,11,12,13,15,16,18,19, 21,22,23,27,31,33,34,36,37,39,40,41,44,49,50,57,68,72,73,74, 77 and 89 obtained according to Formulation Example 5 was diluted with water so that the active ingredient concentration came to 45.5 ppm to prepare a test liquid for each compound. And each formulation of the compound 17, 26 and 76 obtained according to Formulation Example 5 was diluted with water so that the active ingredient concentration came to 18.2 ppm to prepare a test liquid for each compound.

Fifty grams of molding Bonsoru 2 (available from Sumitomo Chemi- cal Co., Ltd.) was put into a polyethylene cup having five holes of 5 mm, and 10 to 15 seeds of rice were planted in the polyethylene cup. Then rice plants were grown until the second foliage leaves developed and the polyethylene cup with the rice plants was placed in a large polyethylene cup containing 55 ml of the test liquid, which had been prepared as described above, was poured. The rice plants were left in a greenhouse at 25°C for 6 days and then cut into the same height of 5 cm. Thirty first-instar larvae of Nilapar- vata lugens (brown planthopper) were set free in the large polyethylene cup, which was then kept covered and left in a greenhouse at 25°C. On the 6th day after the release of larvae of Nilaparvata lugens, the number of parasitic Nilaparvata lugens on the rice plants was examined.

As a result, in the treatment with each of the compounds described

above, the number of parasitic pests on the 6th day after the treatment was not greater than 3.

Test Example 3 Pesticidal Test against Aphis gossypii Each formulation of the compound 8, 9,10,11,13,15,16,18,19,21, 22,23,24,34,39,41,46,47,50,51,52,53,57,59,64,67,69 and 74 obtained according to Formulation Example 5 was diluted with water so that the active ingredient concentration came to 500 ppm to prepare a test liquid for each compound.

The seeds of cucumber were planted in a polyethylene cup of 90 ml volume filled with Molding Aisai 1 (available from Katakura Chikkarin Co., Ltd,) and grown until their first foliage leaves developed. About 30 Aphis gossypii (cotton aphid) were made parasitic on the cucumber plants, which was then left for 24 hours. The test liquid was sprayed at the rate of 20 ml/cup onto the cucumber plants. After the test liquid sprayed onto the plants were dried, the polyethylene cup with the cucumber plants was placed in a large polyethylene cup, which was then kept covered and left in a green- house at 25°C. On the 6th day after the application, the number of Aphis gossypiiwas examined.

As a result, in the treatment with each of the compounds described above, the number of survived pests on the 6th day after the treatment was not greater than 3.

Test Example 4 Pesticidal Test against Eysarcoris lewisi Each formulation of the compound 8,9,10,11,14,21,22,23,39,50, 74 and 76 obtained according to Formulation Example 1 was diluted with water so that the active ingredient concentration came to 100 ppm to prepare a test liquid for each compound.

Then, 3 to 5 seeds of peanut were immersed in the test liquid, which had been prepared as described above, for 1 minute. After the test liquid

treated the seeds of peanut was dried with a paper towel, a filter paper moistened with 1 ml of water was placed on a bottom of polyethylene cup and then the seeds of peanut was placed on it. Six to eight adults of Eysarcoris lewisi were set free in the polyethylene cup, which was then kept covered and left in a greenhouse at 25°C. On the 7th day after the release of Eysar- coris lewisi, the number of dead pests and moribund pests was examined.

As a result, in the treatment with each of the compounds described above, the rate of dead or moribund pests was 100%.

Test Example 5 Pesticidal Test against Leptinotarsa decemlineata Each formulation of the compound 5,8,10,15,21,50,74,76 and 78 obtained according to Formulation Example 1 was diluted with water so that the active ingredient concentration came to 1.6 ppm to prepare a test liquid for each compound.

A leaf of eggplant was immersed in the test liquid, which had been prepared as described above, for 1 minute. After the test liquid treated the leaf of eggplant was dried with a paper towel, the leaf of eggplant was placed in a polyethylene cup of 3 cm in diameter. One second-instar larvae of Leptinotarsa decemlineata (Colorado potato beetle) were set free in the polyethylene cup, which was then kept covered and left in a greenhouse at 25°C. This test was done ten times for one compound. On the 5th day after the release of Leptinotarsa decemlineata, the number of dead pests and moribund pests was examined.

As a result, in the treatment with each of the compounds described above, the rate of dead or moribund pests was greater than 80%.

Test Example 6 Pesticidal Test against Musca domestica Each formulation of the compound 4,5,7,8,9,10,11,12,13,14,15, 16,18,19,21,22,23,26,27,31,33,34,35,36,39,42,44,45,46,49,50, 53, 54,57,59,71,72,73,74,76,77,78,79,88 and 89 obtained according to

Formulation Example 5 was diluted with water so that the active ingredient concentration came to 500 ppm to prepare a test liquid for each compound.

On the bottom of a polyethylene cup of 5.5 cm in diameter was placed a filter paper on the same size, to which the test liquid had been prepared as described above, was added dropwise in an amount of 0.7 ml, and 30 mg of sucrose as a bait was placed on it. Ten female adults of Musca domestica (house fly) were set free in the polyethylene cup, which was then kept covered. After 24 hours, their survival was examined to determine the mortality.

As a result, in the treatment with each of the compounds described above, it was exhibited the mortality of 100%.

Test Example 7 Pesticidal Test against Blattalla germanica Each formulation of the compound 4,5,6,7,8,9,10,11,13,15,16,17, 19, 21,22,23,26,31,34,36,39,42,44,49,50,54,57,62,64,70,72,73,74, 77 and 80 obtained according to Formulation Example 5 was diluted with water so that the active ingredient concentration came to 500 ppm to prepare a test liquid for each compound.

On the bottom of a polyethylene cup of 5.5 cm in diameter was placed a filter paper on the same size, to which the test liquid had been prepared as described above, was added dropwise in an amount of 0.7 ml, and 30 mg of sucrose as a bait was placed on it. Two male adults of Blattalla germanica (German cockroach) were set free in the polyethylene cup, which was then kept covered. After 6 days, their survival was examined to determine the mortality.

As a result, in the treatment with each of the compounds described above, it was exhibited the mortality of 100%.

Test Example 8 Pesticidal Test against Cullex pipiens pallens Each formulation of the compound 1,2,4,5,6,7,8,9,10,11,12,13,

14,15,16,17,18,19,20,21,22,23,25,26,27,28,29,30,31,32,33,34, 35, 36, 37,38,39,40,42,43,44,46,49,50,54,55,56,57,59,62,64,66,68,70, 71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88 and 89 obtained according to Formulation Example 5 was diluted with water so that the active ingredient concentration came to 500 ppm to prepare a test liquid for each compound.

In 100 ml of ion-exchanged water, the test liquid had been prepared as described above, was added dropwise in an amount of 0.7 ml. The concentration of active ingredient was 3.5 ppm. Twenty final-instar larvae of Cullex pipiens pallens (common mosquito) were set free in the solution.

After 1 days, their survival was examined to determine the mortality.

As a result, in the treatment with each of the compounds described above, it was exhibited the mortality of 100%.

Test example 9 Pesticidal Test against Ctenocephalides felis Each of the compound 8,15,19,21 and 34 was dissolved in acetone to give a 0.2ml solution of 0.114% w/w, which was uniformly treated on a filter paper having 3.8cm in diameter, and air-dried. The amount of active ingredient was 200 mg/m2. The filter paper was filled in a lid of a 200ml glass bottle. Twenty adult Ctenocephalides felis (cat flea) were released in the glass bottle, which was followed by covering with the lid. The glass bottle was upset for making the fleas contact with the filter paper. After 24 hours, the mortality was examined.

As a result, in the treatment with each of the compounds described above, it was exhibited the mortality of 100%.

Industrial Applicability The present invention makes it possible to effectively control pests such as insect pests, acarine pests, and nematode pests.