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JPH0246015B2 |
1. 2,4,5-Trihalogeno- and 2,3,4,5-tetrahalogenobenzene derivatives of the formula (1) see diagramm : EP0164619,P24,F1 in which R represents-COOH, -COCI, -COF, -CN, -CONH2 , -CH2 OH, -CH2 CI, -CHCI2 , -CCI3 or -CHO , R**1 represents CI or...
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JPH0244829B2 |
Methyl substituted bicyclo AD2.2.1BD heptane/heptene methylol derivatives of general formula (A), wherein the methyl group occupies the position C-4 or C-5, the residue R?1 the position C-2 and the methylol residue the position C-3 or al...
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JPH02240035A |
PURPOSE: To obtain pure environmentally safe p,p'-dicofol which does not contain practically inactive o,p'-dicofol nor DDT-related impurities which may pollute the environment by recrystallizing technical dicofol from a suitable solvent....
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JPH02240033A |
NEW MATERIAL:A compound of formula I (X and Y are CHO, CO2H or CH2OR; R is tetrahydropyranyl ether or H). EXAMPLE: 2(E)-(4-Methyl-3-pentenylidene)-butane-diol (β-acaridial). USE: A citrus aromatic agent, an antibacterial agent against p...
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JPH02237950A |
NEW MATERIAL:Compound expressed by the formula (R1 and R2 are as follows; R1 is H and R2 is OH or both together represent O; R3 is halogen; R4 is lower alkyl or lower alkenyl, except a compound in which R1 is H; R2 is OH; R3 is Cl and R4...
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JPH02227097A |
PURPOSE: To improve the efficiency of optical resolution of a racemic mixture of an alcohol represented by a specified general formula by acting an enzyme having a stereoselective ester-synthesis activity on a mixture of the racemic mixt...
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JPH02225432A |
NEW MATERIAL:2-Fluoro-2 (pentafluorophenyl)ethanol. USE: A starting substance for medicines, agrochemicals and functional materials such as liquid crystals. PREPARATION: Pentafluorostyrene oxide of formula II or its optically active isom...
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JPH0239492B2 |
The invention provides novel compounds of the formulaorwherein R1 is hydrogen, hydroxy, alkoxy of 1 to 4 carbon atoms, benzyloxy, allyloxy, 2,3-epoxypropoxy, 2,3-dihydroxypropoxy, methoxymethoxy, ethoxymethoxy, or wherein one of R5 and R...
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JPH0239520B2 |
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JPH02218642A |
NEW MATERIAL: A compd. represented by formula I (a group represented by formula II is divalent cyclic groups represented by formulae III-VII, R1 is 6- carboxyhexa-2-enyl or a modified group modified by the reduction of a double bond volu...
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JPH0237336B2 |
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JPH0237330B2 |
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JPH02209840A |
NEW MATERIAL:The compound of formula I (n is 5-10) and its salt. EXAMPLE: 1,1,1,15,15,15-Hexafluoro-2,4,12,14-pentadecanetetraone. USE: A ligand for producing a cobalt complex (formula II) useful as a catalyst for the production of a hyd...
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JPH02209816A |
PURPOSE: To obtain a compound, having a perfluoroalkyl group and conventionally difficult to synthesize in one stage by reacting an organic compound containing carbon-carbon unsaturated bond with a perfluoroalkyl iodide in the presence o...
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JPH0236580B2 |
1,2,3,4,4a,4b,5,6,7,8,8a,12b-Dodecahydro-7-(oxo, hydroxy or amino)-9-hydroxy-11-(alkyl, alkoxy or alkoxyalkyl)triphenylenes, 2,3,3a,3b,4,5,6,7,7a,11b-decahydro-6-(oxo, hydroxy or amino)-8-hydroxy-10-(alkyl, alkoxy or alkoxyalkyl)-1H-cycl...
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JPH02202864A |
NEW MATERIAL:A compound expressed by formula I (R is 1-20C straight-chain, branched or cyclic alkyl or aryl which may have substituent group; n is 0 or 1). EXAMPLE: 6-Amyloxymethyl-2,3-dicyanonaphthalene. USE: A fluorescent substance or ...
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JPH02200646A |
NEW MATERIAL:Compounds of formulas I and II (R1 and R4 are 1-4C alkyl, 1-4C alkoxy; R4 is further H; R2 is Cl, Br, H, OH, trimethylsiloxy, t- butyldimethylsiloxy, acetyloxy or methanesulfonate; R3 is H, Cl, Br or F; n1 and n2 are integer...
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JPH02502381A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPH0234331B2 |
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JPH02193916A |
PURPOSE: To obtain a vasodilator containing a specific lignan as an active ingredient. CONSTITUTION: 2,3-Dibenzyl-1,4-butanediol expressed by the formula is contained as an active ingredient in the aimed vasodilator. The above-mentioned ...
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JPH02191290A |
NEW MATERIAL:A complex shown by formula I (R1 and R5 are lower alkyl and/or aryl; R2 and R6 are H, lower alkyl, etc.; R3, R4, R7 and R8 are H, aryl, etc.). EXAMPLE: Bis(1-piperidinocarbamoyl-4,4-dimethyl-1,3-pentanedionato)co
balt (II). ...
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JPH0233008B2 |
Compounds of formula (I): (I) (wherein: R1 represents a hydroxy group, a C1-C8 alkoxy group, an aliphatic acyloxy group, a benzoyloxy group or a cinnamoyloxy group; p1 R2 represents a hydrogen atom, a C1-C8 alkyl group, an aliphatic acyl...
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JPH02184645A |
PURPOSE: To selectively produce the subject alcohol having a high degree of unsaturation by using a fish oil having a high degree of unsaturation and many double bonds as the raw material and carrying out high-pressure hydrogenation ther...
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JPH0231699B2 |
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JPH02178243A |
NEW MATERIAL:2,2'-Bis(α-hydroxydiphenylmethyl)biphenyl expressed by formula I. USE: A host compound capable of forming a stable clathrate compound using an antimicrobial agent, insecticide or aromatic agent, etc., as a guest compound an...
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JPH0230335B2 |
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JPH0230334B2 |
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JPH0229659B2 |
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JPH0229658B2 |
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JPH0229653B2 |
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JPH02167237A |
PURPOSE: To produce the subject compound having high purity and free from isomers on an industrial scale at a low cost from starting raw materials consisting of an alkyIbenzene, n-butene and carbon monoxide using 3-4 steps via a p-alkylp...
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JPH0228584B2 |
Disclosed is a process of reduction of aldehydes or ketones by means of reaction with alcohols, in the presence of a catalyst, to produce alcohols which correspond to said respective aldehyde or ketone. A solid of partially dehydrated on...
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JPH02501734A |
PCT No. PCT/US87/03364 Sec. 371 Date Jun. 29, 1989 Sec. 102(e) Date Jun. 29, 1989 PCT Filed Dec. 22, 1987 PCT Pub. No. WO88/05045 PCT Pub. Date Jul. 14, 1988.This invention encompasses novel analogs of Leukotriene B4 which are selected f...
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JPH0226610B2 |
A process for the preparation of 1,2-diols having at least 4 carbon atoms by hydrolysis of the corresponding 1,2-epoxide compound with water in the presence of catalysts at elevated temperatures characterized in that salts of primary, se...
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JPH0226608B2 |
A process for the safe supply of molecular oxygen or gas containing molecular oxygen to an oxidation of hydrocarbons in the liquid phase, wherein, immediately before the point of entry into the liquid hydrocarbon, the oxygen, or gas cont...
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JPH02142742A |
PURPOSE: To obtain the subject compound which is an intermediate for medicines, agricultural chemicals and electronic materials, such as liquid crystal material, by using a specific pyrrolidinylmethanol derivative as a catalyst and addin...
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JPH0224255B2 |
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JPH0223534B2 |
3-Methyl-2-butenyl 3,3-dimethyl-4-pentenoate, by-product in the condensation between 3-methyl-2-butene-1-ol and a lower alkyl orthoacetate, can be recycled into the condensation by alkoxylating it with a lower alkyl alcohol or orthoaceta...
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JPH02134334A |
NEW MATERIAL:The optically active glycol compound containing unsaturated group and expressed by formula (R is alkenyl, alkynyl, alkenyloxy or alkynyloxy). EXAMPLE: (2S,3R)-3-phenyl-3-allyl-1,2-propanediol. USE: Pharmaceuticals, agricultu...
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JPH0222743B2 |
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JPH0222741B2 |
Substituted [1,1'-biphenyl]-3-ylmethyl 3-(2,2-dihaloethenyl)-2,2-dimethylcyclopropanecarboxylates, as well as processes, uses, and intermediates thereto, are disclosed. The substituted [1,1'-biphenyl]-3-ylmethyl 3-(2,2-dihaloethenyl)-2,2...
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JPH02127401A |
PURPOSE:To obtain a chitosan derivative soluble in various organic solvents and useful for the separation of optical isomers, in high reproducibility, by reacting chitosan with an acid halide in the presence of a sulfonic acid. CONSTITUT...
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JPH0220609B2 |
PURPOSE:To provide the titled remedy containing a specific compound such as 6-(1-imidazolylmethyl)-5,6,7,8-tetrahydro-2-naphthalene-carb
oxylic acid, etc. or its salt, and having excellent activity to suppress the synthesis of thromboxan...
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JPH02121937A |
PURPOSE: To obtain alcohols in high conversion ratio and selectivity by reacting olefins with an oxygen-containing gas in the pressence of a cobalt complex catalyst and secondary alcohol. CONSTITUTION: A compound expressed by formula I (...
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JPH0219807B2 |
Process for the preparation of ÄperfluoroalkylarylÜamines by reacting, in a first stage, an aromatic amine, and sulphur dioxide or carbon dioxide with a metal chosen from zinc, aluminium, manganese, cadmium, magnesium, tin, iron, nicke...
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JPH02117631A |
PURPOSE: To obtain 1-(4'-isobutylphenyl)ethanol useful as an intermediate for ibuprofen by hydrogenating 4-isobutylacetophenone in the absence of a solvent and in the presence of a treated active spongy Ni catalyst precleaned with an org...
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JPH02116749A |
PURPOSE: To reduce analysis time with simplification of evaluation of a contact hydrogenation catalyst by using an acetylene based organic compound having a carbon-carbon triple bonding at a terminal, but with no optical anisotropy cente...
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JPH02115137A |
PURPOSE: To obtain the title compound useful as an intermediate in the field of the perfume industry and agricultural chemicals simply in high yields by using an arylcarbinol as a starting material and reacting it with n-propanol in the ...
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JPH02111736A |
NEW MATERIAL:1,1-Dimethyl-3-hydroxymethylindane expressed by formula I. USE: An aromatizing component of perfumes, having floral, fruity, grassy and woody lasting aroma based on rosy note and used as an aromatizing material for perfumes,...
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JPH02108637A |
PURPOSE: To accelerate the reduction of a carbonyl compd. with an alkali metal borohydride, etc., in a two-phase reaction system by using N-benzyl-N,N-bis-(2- hydroxyethyl)cocoammonium halide as a phase transfer catalyst. CONSTITUTION: I...
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