| Document |
Document Title |
|
JP3115053B2 |
PURPOSE: To obtain the title new compound useful as a raw material for synthetic resin, liquid crystal polymer, medicine, agricultural chemical, pigment, dye, etc. CONSTITUTION: A compound of the formula (R is CH3 or CHO) such as 7- meth...
|
|
JP2000327605A |
To obtain the subject compound useful as an intermediate for synthesizing medicines, etc., by hydrolyzing or alcoholizing a fluoroacyloxy compound in the presence of a specific rare earth-based catalyst. In hydrolyzing or alcoholizing a ...
|
|
JP2000319212A |
To readily produce a threo-1,2-diaryl-1,2-ethanediol derivative useful as a raw material for a source of asymmetry in an asymmetric synthesis reaction under a mild condition by reacting an alkali metal alkoxide on an erythro-1,2-diaryl-1...
|
|
JP2000514302A |
An unsaturated fatty acid precursor of a natural 1,3-diol derivative, which precursor is the same as that which is naturally present in a cider apple, is enzymatically converted to the natural 1,3-diol derivative.
|
|
JP2000302711A |
To produce a β-substituted alcohol in high yield by reducing an α- substituted ester with an alkali metal borohydride. The objective compound is produced by reducing (A) an α- substituted ester of formula [R1 is H, a (substituted)1-21...
|
|
JP2000514409A |
PCT No. PCT/EP97/02546 Sec. 371 Date Nov. 5, 1998 Sec. 102(e) Date Nov. 5, 1998 PCT Filed May 20, 1997 PCT Pub. No. WO97/46534 PCT Pub. Date Dec. 11, 1997The invention relates to a process for preparing substituted arylpyrazoles of the g...
|
|
JP3105314B2 |
PURPOSE: To position-selectively and stereoselectively produce a homoallyl alcohol having been selectively reacted with an allyl compound having a fewer substituent groups at the allyl position, useful as an intermediate for medicines. C...
|
|
JP2000297054A |
To recover DCC[di(chlorodimethyl)cyclohexane] and/or TCC[tri(chlorodimethyl)cyclohexane] of chlorinated aromatic compounds from solvents in a convenient operation and to avoid the problem such as the corrosion of an equipment due to the ...
|
|
JP2000273053A |
To provide a method for producing a conjugated alkadiene oligomer, enabling the prevention of the deposit of palladium and the recovery-reuse of a catalyst in a state maintaining the high activity of the catalyst by carrying out in speci...
|
|
JP3095241B2 |
|
|
JP3093610B2 |
To obtain a campholinic aldehyde derivative useful for a perfuming ingredient, especially having sandalwood, marine or ozone type odor. This compound is expressed by formula I (R is H or methyl; X is CHO or C≡N), e.g.; (-)-(1'R)-2-meth...
|
|
JP2000256235A |
To obtain in high optical yield the subject compound as a raw material compound for optically active forms of ketene S,S-acetals useful as antimycotic agents by reduction of an acetophenone derivative in the presence of a catalyst consis...
|
|
JP2000512299A |
The present invention relates to process of halogenating an alkynol having 3 to 20 carbon atoms to produce a compound having the formula: R-C 3BOND (C-CH2)x-OH, wherein R is F, Cl, Br or I and x is 1 to 18. In particular, this invention ...
|
|
JP2000256236A |
To obtain a high-optical purity diol compound in high yield by asymmetric reduction of a diketone compound using an optically active oxazaborolidine complex prepared from a specific optically active amino alcohol and a borane. This compo...
|
|
JP2000247983A |
To obtain a new compound useful as a catalyst for obtaining an optically active haloalkylated compound from the corresponding aldehyde or ketone. This new compound is a compound of formula I (R1 to R6 are each an alkyl, aryl, alkoxyalkyl...
|
|
JP2000247915A |
To provide a method for efficiently and economically producing an alcohol. This method for producing an alcohol by reacting an aldehyde, a ketone or a fatty acid ester with hydrogen comprises using a modified sponge copper catalyst obtai...
|
|
JP2000511518A |
PCT No. PCT/EP97/02402 Sec. 371 Date Nov. 6, 1998 Sec. 102(e) Date Nov. 6, 1998 PCT Filed May 13, 1997 PCT Pub. No. WO97/43272 PCT Pub. Date Nov. 20, 1997The invention thus provides compounds of Formula (I) wherein R1 and R2 which may be...
|
|
JP2000237595A |
To make a complicated recovering process of asymmetric di- or triamine compds. unnecessary after completion of the reaction by using an asymmetric diamine catalyst carried on a polymer expressed by a specified formula as the catalyst to ...
|
|
JP3082264B2 |
|
|
JP2000226357A |
To obtain the subject new compound having a peculiar fragrance, useful in the field of perfume and applicable to a wide range of uses such as perfumery and/or detergents comprising perfumed water, environmental fragrance, soap, lotion, s...
|
|
JP2000212110A |
To obtain an optically active α-alkyl benzyl alcohol useful as an intermediate for medicament and agrochemicals by the asymmetric reduction of a specific phenyl alkyl ketone with a hydrogen donor in the presence of a specific combinator...
|
|
JP2000509405A |
The invention relates to vitamin D analogs of general formula (I) wherein: R1 is a hydrogen atom or a substituent selected from the group consisting of hydroxy, CH2OH, CH2CH2OH, CH2CH2CH2OH, OCH3, OCH2OH, OCH2CH2OH and OCH2CH2CH2OH; R2 i...
|
|
JP2000507933A |
The invention relates to cycloalkyl derivatives, a process for their preparation and their use.
|
|
JP2000178215A |
To efficiently obtain alcohols useful as an intermediate product for synthesizing medicament or the like under a milder condition of reaction than conventional by conducting reaction in the presence of a bipyridyl derivative, a complex o...
|
|
JP2000169408A |
To provide a continuous distillation method having excellent economic efficiency, guaranteeing safety of high level in the case of isolating α- ethynylcarbinol on an industrial scale.α-Ethynylcarbinol is isolated from a liquid reaction...
|
|
JP2000169406A |
To produce an optically activity alcohol inexpensively and safely by using a specific reducing agent.A compound of formula I (R1 and R2 are each an alkyl group, an aryl group or an aralkyl group) is reduced in the presence of an opticall...
|
|
JP2000169407A |
To obtain the subject derivative useful as an intermediate for a medicine in excellent selectivity in a high yield by using a carbonyl-ene reaction in the presence of an inexpensive and readily obtainable trifluoroborane compound and an ...
|
|
JP2000169369A |
To use either one of the subject compounds in pharmaceutical compositions, food materials and feed complements in order to raise feed conversion efficiency.The compound, a tocotrienol or tocotrienol-like compound [pref. 3,4-dihydro-2-(4,...
|
|
JP3054678B2 |
|
|
JP2000159704A |
To produce the subject compound useful as an intermediate for insecticidal and insect repellent ingredients by protecting the aldehyde group in a specific bromobenzaldehyde with a protecting group, providing a specified compound, then re...
|
|
JP3050104B2 |
To arbitrarily and simply obtain the racemic compound or both enatiomers of the subject compound useful as a raw material for pharmaceutical and agricultural chemical, in high yield. The objective compound of formula II is obtained by ca...
|
|
JP2000506888A |
This invention discloses an improved method for the [2+2+2] cyclotrimerization reaction in aqueous solutions using a water soluble transition metal catalyst.
|
|
JP2000154156A |
To obtain a new diphenyl derivative readily separable from a reaction mixture and reusable, useful as an enantiomer selective hydrogenation catalyst, etc.This compound is shown by formula I (R1 is chloromethyl, bromomethyl or iodomethyl;...
|
|
JP3049086B2 |
Saturated hydrocarbon chains are oxidised using a titanium containing silicalite catalyst having an infra red absorption band around 950 cm<-><1> preferably in solutions, the chains may be alkanes or alkyl groups of alkyl cyclic compounds.
|
|
JP3049578B2 |
PURPOSE: To obtain the subject compound useful for urethane resin raw material, etc., in high yield because of a high catalyst activity by using a nitroso group- containing palladium compound as the catalyst when termerization reaction o...
|
|
JP3046207B2 |
PURPOSE: To provide a method for applying, increasing, improving or modifying an odor note to a perfuming composition or a perfumed article. CONSTITUTION: (+)-(1'S,E)-3,3-dimethyl-5-(2',2',3'-trimethyl-3'-cyclopente
n-1'-yl)-4- penten-2-...
|
|
JP3040353B2 |
To obtain the new subject metal complex for production, etc., of optically active alcohols, useful as catalysts, etc., excellent in asymmetric yields in various organic synthetic reactions, especially hydrogen transfer type asymmetric re...
|
|
JP2000119248A |
To provide the subject novel substituted pyrrolidine that shows high stereo selectivity and is useful as an asymmetric source for synthesizing an optically active alcohol of high purity in high yield.This compound is represented by formu...
|
|
JP3036882B2 |
|
|
JP2000103754A |
To obtain the subject compound at a high yield by reacting Grignard's reagent to a compound obtained by reacting hydrogen with acetone and an aromatic aldehyde in the presence of a basic material and a hydrogen addition catalyst.A compou...
|
|
JP3030157B2 |
PURPOSE: To provide a new cyclohexanetriol derivative useful as an intermediate for 1α-hydroxyvitamin D derivatives. CONSTITUTION: The compound of the formula [R1-R3 are each H or OH- protecting group; X is O, CHCH2OR4, CHCHO, or CHCO2R...
|
|
JP3031851B2 |
To efficiently produce alcohols useful as an intermediate for producing a medicine, etc., in ultrahigh selectivity and yield by reacting aldehydes with olefins in the presence of a compound represented by a specific formula. (B) Aldehyde...
|
|
JP2000095718A |
To obtain new ketones useful for feeling stimulating compounds, especially as precursors for fragrance, masking agents and compounds for antimicrobial agent.The ketones are expressed by formula [Y is a (substituted)alkyl or the like; R1 ...
|
|
JP2000095777A |
To obtain an α-halogeno-α'-hydroxyxylene useful as a synthetic intermediate for a medicine and an agrochemical by using an inexpensive raw material and under a,oderate condition, by reacting an α,α'-dihydroxyxylene with a hydrogen ha...
|
|
JP3029753B2 |
PURPOSE: To synthesize a synthetic intermediate of an attracting pheromone to injurious insects of citrus (insects of Biprorulus: Biprorulus bibax Breddin) in a high yield and in high purity. CONSTITUTION: The subject production consists...
|
|
JP2000095719A |
To obtain α,α'-dihydroxy-o-xylenes in high yield by heating α, α'- dihalogeno-o-xylenes under a specific pH in the presence of water.The compounds expressed by formula II (e.g.; α,α'-dihydroxy-o- xylene or the like) are obtained by...
|
|
JP2000086556A |
To provide a production process for an acetylene alcohol that differs from the conventional process using liquid ammonia and can be carried out under mild conditions using a minimized amount of alkali metal hydroxide without adverse effe...
|
|
JP2000086553A |
To inexpensively obtain the subject fluorinated benzyl alcohol in high yield by allowing chlorobenzaldehyde to react with an alkali metal fluoride in the presence of a quaternary photophonium salt under specific conditions followed by hy...
|
|
JP2000086583A |
To obtain a high-purity fluorine-containing benzyl derivative useful as a synthetic intermediate for a medicine, etc., in a short process in a high yield by reducing a specific fluorine-containing benzonitrile derivative and replacing an...
|
|
JP3022480B2 |
To obtain a composition which forms a catalyst having high activity of equilibrating and/or condensing an organosilicon compound simply in a manner in which the formation of free hydrogen chloride is small and controlled by mixing an oxy...
|
