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JPS5437130B2 |
An optical resolution process for preparation of optically active (+)-cis-, (+)-trans-mixed chrysanthemic acid which comprises resolving a mixture of (+/-)-cis- and (+/-)-trans-chrysanthemic acids by using as a resolution agent an optica...
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JPS54130538A |
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JPS54128516A |
Thioalkanoylalkanoic acid compounds and salts thereof having the formula wherein R1, R2, R3 and R4 each is hydrogen or lower alkyl; R5 is hydrogen, lower alkanoyl, benzoyl or A and B each is hydrogen or join together as a polymethylene c...
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JPS54128549A |
A compound selected from (S)- alpha -cyano3-phenoxybenzyl (1R,trans)-2,2-dimethyl-3-(2',2'- dichloro-1',2'-dibromoethyl)- cyclopropane-1 -carboxylate; (S)- alpha -cyano-3-phenoxybenzyl (1R,cis)-2,2-dimethyl-3-(2',2'-dibromo- 1',2'-dichlo...
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JPS5430024B2 |
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JPS54103850A |
New compounds are described that fall within the general formula I wherein R<1> is hydrogen or a methoxy, ethoxy, propoxy, butoxy, tetrafluoroethoxy, methylthio, ethylthio, propylthio, fluoro, chloro, bromo, methyl, ethyl, or nitro group...
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JPS54100350A |
A process for the separation of the cis- and trans-stereoisomers of a substituted vinylcyclopropanecarboxylic acid of the formula in which R is alkyl with 1 to 4 carbon atoms, halogen, phenyl or phenyl substituted by at least one of alky...
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JPS54100349A |
Compounds of the following general formula and salts thereof are irreversible inhibitors of gamma -aminobutyric acid transaminase: wherein R1 is hydrogen, alkylcarbonyl wherein the alkyl moiety has from 1 to 4 carbon atoms and is straigh...
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JPS5498745A |
NEW MATERIAL:Cyclohexanecarboxylic acid derivatvies of formula I (R1 is alkyl; R2 is OH, 1W6C lower alkoxy). EXAMPLE: Cis-1-methyl-4-ethylcyclohexanecarboxylic acid. USE: Medicines having antiallergic, antibacterial, antithrombotic activ...
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JPS54106294U |
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JPS5484563A |
Derivatives of prostaglandin I2 characterized by the generic structural formulae, and are useful for inhibiting platelet aggregation or gastric acidity in individuals for whom such therapy is indicated. In the preceding structural formul...
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JPS5481242A |
Dichlorovinylcyclobutanones of the formula wherein one of R1 and R2 is methyl and the other is hydrogen or methyl, or R1 and R2 together are alkylene having 2-4 C atoms, X is chlorine and Y is hydrogen, or X is hydrogen and Y is chlorine...
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JPS5481215A |
Halogenated butyric acid chlorides of the formula in which X denotes fluorine and Y denotes hydrogen or fluorine or X denotes chlorine and Y denotes hydrogen or chlorine, method for their preparation and their use as intermediates in the...
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JPS5479254A |
phi -Chlorocarboxylic acid esters corresponding to the general formula in which R, R1, R2, R3, R4 and R5, which may be the same or different, each represent a linear or branched alkyl radical containing from 1 to 4 carbon atoms or, excep...
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JPS5473758A |
PURPOSE: To synthesize a dihalovinyl-chrysanthemumic acid useful as an acid component of pyrethroid herbicides, by reacting a 1,1,1-trihalo-4-methyl-3-pentene with a diazoacetatic ester, using an asymmetric copper complex. CONSTITUTION: ...
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JPS5412462B1 |
A method is disclosed for the preparation of alicyclic ketenes, useful as intermediates in the preparation of lactams. The instant method consists in a heat treatment of an alicyclic acid, or its anhydride, in a matallic reactor exempt f...
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JPS5459261A |
NEW MATERIAL:Substituted cyclopropanecarboxylic acid derivatives of formula I [X is halogen; R1 is H, residue of alcohol(alkyl, formula II where R3 is alkenyl, formulaIII where R4 is ethynyl, formulaIV where A is phenoxyphenyl); R2 is H,...
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JPS549636B2 |
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JPS549170B2 |
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JPS5441850A |
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JPS544949B2 |
A method is disclosed for the preparation of alicyclic ketenes, useful as intermediates in the preparation of lactams. The instant method consists in a heat treatment of an alicyclic acid, or its anhydride, in a matallic reactor exempt f...
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JPS541711B2 |
The 2-descarboxy-2-(tetrazol-5-yl)-11-desoxy-15-substituted- omega -pentanorprostaglandins and various intermediates employed in their preparation. The novel prostaglandins of this invention have been found to have activity profiles comp...
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JPS541698B1 |
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JPS545949A |
PURPOSE: Cyclohexanecarboxylic acid I(R1 is H or methyl; R2 is OH, 1-6C lower alkoxy or amino; where R2 is amino when R1 is H) and its derivs.
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JPS5343498B2 |
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JPS53130639A |
Process for the separation of the steroisomers of substituted vinylcyclopropanecarboxylic acids of general formula (I) (see figure i) where r means alkyl with 1-4 carbon atoms and/or halogen, the position of the substituents on the cyclo...
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JPS5341152B1 |
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JPS5339433B1 |
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JPS53119851A |
A process for the separation of the stereoisomers of a stereoisomer mixture of a cyclic carboxylic acid of the formula in which R1 and R2 each independently is hydrogen, halogen, C1-C6-alkyl or C2-C6-alkenyl, R3 is alkyl, alkenyl or alky...
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JPS5337858B2 |
A method for racemization of optically active 2,2-dimethyl-3-(1'-alkenyl)-cyclopropane-1-carboxylic acids of the formula: CH3CH3 ANGLE C ANGLE 2 R1 31 ANGLE C=CH-CH----CH-COOH ** R2 wherein R1 and R2 are each a hydrogen atom or an alkyl ...
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JPS53112853A |
A process for the preparation of a dihalogenovinylcyclopropanecarboxylic acid or an ester thereof, of the formula in which Hal each independently is fluorine, chlorine or bromine, R1 and R2 each independently is hydrogen or C1-4-alkyl, o...
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JPS5335914B2 |
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JPS5335913B2 |
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JPS53111040A |
A method is disclosed for the preparation of alicyclic ketenes, useful as intermediates in the preparation of lactams. The instant method consists in a heat treatment of an alicyclic acid, or its anhydride, in a matallic reactor exempt f...
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JPS53105413A |
PURPOSE: To prepare the title compound in high yield minimizing the formation of the byproducts by the liquid phase oxidation of an α-branched aliphatic aldehyde with molecular oxygen in the presence of lithium or alkaline earth metal c...
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JPS53105412A |
PURPOSE: To prepare the title compound in high yield minimizing the formation of the byproducts by the liquid phase oxidation of an α-branched aliphatic aldehyde with molecular oxygen in the presence of alkaline (earth) metal salt of fo...
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JPS53101342A |
Cyclopropane carbonyl derivs. of formula (I) are new: (where X1 and X2 are each Me, F, Cl or Br. X3 and X4 are each Cl or Br; R1 is H or Me; and R2 is OH or halogen) (I) are intermediates for pesticides, e.g. 3-(2',2'-dichloro-1',2'-dibr...
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JPS5398946A |
PURPOSE: 3,4-dihydrophenanthrene-2-acetic acid derivs. I(R1,2 are H or lower alkyl), e.g. 3, 4-dihydro-phenanthrene-2-propionic acid.
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JPS5328968B2 |
New insecticides are of formula: wherein R1 represents hydrogen or a methyl group; R2 represents hydrogen or a halogeno or lower alkyl group; R3 represents hydrogen or a halogen, lower alkyl (which is difference to R2 when R2 represents ...
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JPS5328411B2 |
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JPS5392743A |
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JPS5387331A |
PURPOSE: Monomethyl terephthalate is heated in the presence a cobalt catalyst to form uncolored terephthalic acid and dimethyl terephthalate in a short period and in high conversion.
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JPS5386026A |
PURPOSE: Cyclopropanecarboxylic acid esters I (R1 is H, Cl or CH3;R2 is H, ≤ 7C alkyl,alkenyl or alkynyl; R3 is H or CH3;R4 is ≤7C alkenyl, alkynyl or allylalkyl).
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JPS5386030A |
PURPOSE: Cyclopropanecarboxylic acid esters I (R1 is HCl or methyl; R2 is H, ≤7C alkyl, alkenyl or alkynyl; R3 is H, Cl or≤3C alkyl; R4 and R5 are H, Cl, ≤7C alkyl, alkenyl, alkynyl or arylalkyl; X is H, CN or ethynyl).
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JPS5324941B2 |
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JPS5324063B2 |
1421527 C 21 -dicarboxylic acid WESTVACO CORP 11 Feb 1974 [12 Feb 1973] 06223/74 Heading C2C A process for the production of a C 21 -dicarboxylic acid having the formula wherein one X is hydrogen, and the other is a carboxylic acid group...
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JPS5377041A |
Process for the preparation of 1-lower alkoxycarbonyl-3-( beta , beta -dichlorovinyl)-2,2-dimethylcyclopropanes from the corresponding 1-cyano-1-carboxylic acid ester by hydrolysis, decarboxylation of the free carboxylic acid, reaction o...
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JPS5373548A |
The preparation of the carboxylic acids derived from indane represented by the formula: in which R has the meaning given in Claim 1, in the free form, of their therapeutically acceptable salts, and of certain of their amino esters and ca...
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JPS5320978B2 |
4-HOMOISOTWIST-3-YL-CARBINOL HAVING THE FORMULA (II): (II) is prepared by reducing 4-homoisotwistane-3-carboxylic acid or a salt or lower alkyl ester thereof, having the formula (I): (I) wherein A is hydrogen, one equivalent of an alkali...
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JPS5320979B2 |
4-HOMOISOTWISTANE-CARBOXYLIC ACID IS PREPARED BY REACTING 4-HOMOISOTWISTANE WITH T-BUTYL ALCOHOL AND FORMIC ACID OR CARBON MONOXIDE, IN THE PRESENCE OF SULFURIC ACID AS CATALYST.
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