Matches 251 - 300 out of 687 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >
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4507317 Acaricidal 2,2'-bridged[1,1'-biphenyl]-3-ylmethyl esters  
2,2'-Bridged[1,1'-biphenyl]-3-ylmethyl carboxylates and insecticidal compositions containing these esters are useful for the control of a broad range of insects and acarids. Certain...
4506091 Removal of catalyst residues from polyesters  
A process for preparing esters which comprises reacting a polycarboxylic acid with an excess of alcohol and in the presence of an organotitanate catalyst, treating the crude mixture with a suitable...
4500733 Process for preparing dihalovinylcyclopropanecarboxylic acids  
A cyclopropanecarboxylic acid of the formula ##STR1## is prepared by the reaction of a compound of the formula ##STR2## with an alkali metal hydroxide or alkaline earth metal hydroxide in an ether...
4496586 Cyclopropanecarboxylates, their production and insecticide containing them as an active ingredient  
The present invention relates to carboxylic acid esters of the formula (I), ##STR1## wherein R 1 is a hydrogen atom or a methyl group, and when R 1 is a hydrogen atom, R 2 is a group of the...
4496584 Amidine derivatives with anti-complement activity  
Amidino compounds represented by the formula ##STR1## and pharmaceutically acceptable acid addition salts thereof are novel compounds and are useful as powerful antitrypsin, antiplasmin,...
4496389 Amide derivatives of N-trifluoroacetyl-N-phosphonomethylglycine, herbicidal compositions and use  
This disclosure relates to alkyl N-trifluoroacetyl-N-phosphonomethylglycine amide and hydrazide derivatives, to herbicidal compositions containing same and to the herbicidal use thereof. These...
4493844 Insecticidal 2,2'-bridged(1,1'-biphenyl)-3-ylmethyl carboxamides  
2,2'-Bridged[1,1'-biphenyl]-3-ylmethyl carboxamides and insecticidal compositions containing these carboxamides are useful for the control of a broad range of insects and acarids.
4492800 Process for the preparation of 1,1-dichloro-alkenes  
A process for the preparation of a 1,1-dichloro-alkene of the formula ##STR1## in which R 1 is hydrogen, or an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aralkenyl or...
4490552 Preparation of aryl esters by decomposing an aryl thallium carboxylate  
A novel process for the preparation of aryl esters of organic carboxylic acids in high isomer purity by decomposing a compound of the formula ##STR1## wherein Ar is an aryl radical, X is an acyloxy...
4489093 Insecticidal esters  
Novel esters in all possible isomeric forms of the formula ##STR1## wherein R is selected from the group consisting of (a) optionally unsaturated alkyl of 1 to 8 carbon atoms and optionally...
4487956 Menthyl 2,2-dimethylcyclopropanecarboxylate and resolution of the same  
An ester obtained from 2,2-dimethylcyclopropanecarboxylic acid and optically active menthol, represented by the formula, ##STR1## is effectively resolved into diastereomers, which upon...
4487955 Process for preparing cis or trans, optically active monoalkyl esters of cyclopropane-1,3-dicarboxylic acids  
A novel process for the preparation of esters of 2,2-dimethyl-cyclopropane-1,3-dicarboxylic acids in their optically active forms having a cis or trans configuration I comprising salifying the ...
4482570 Pyrethroids  
Pyrethroid type insecticides described having the formula: ##STR1## wherein A=CF 3 -CC-, ##STR2## (X=H, F, Cl, Br: Y=Cl, Br) ##STR3## (group ##STR4## is bound to the hererocyclic ring in...
4479898 Oligopeptide prodrugs  
Prodrugs are described whose structures have a oligopeptide chain which is substituted by a nucleophilic chemotherapeutic residue at the α-position. The products have increased cell membrane...
4474980 Process for the preparation of intermediates for pyrethroids  
There is described a process for the preparation of 2,2-dimethyl-cyclopropanecarboxylates carrying in position 3 a halosubstituted dienic substituent. Said compounds are intermediates for the...
4474977 Amino-alcohol derivatives  
The new amino-alcohol derivatives according to the invention have the formula: ##STR1## wherein: (a) R 1 is hydrogen, an alkylthio C 1 -C 5 radical, a cycloalkylthio C 5 -C 6 radical, an...
4473703 Method of epimerization of alkyl chrysanthemate  
A process for isomerization of cis-chrysanthemate esters by contacting a chrysanthemate ester containing a cis-chrysanthemate ester with a Lewis acid, to transform the cis-chrysanthemate ester into...
4472313 Cyclopropanation of olefins  
The invention provides a method of converting ethylenically unsaturated units of an olefinic substrate to corresponding cyclopropanyl units, comprising treating the olefinic substrate, in an ether...
4468521 Method of producing gamma-halogeno-delta unsaturated carboxylic acid esters  
Novel γ-lactone derivatives are provided. These lactone derivatives, when reacted with hydrogen halide in alcohol, yield γ-halogeno-δ-unsaturated carboxylic acid esters. This ring-opening...
4463014 Cyclopropane carboxylates  
Esters in their stereoisomeric form or mixtures thereof of the formula ##STR1## wherein R 1 and R are different and individually selected from the group consisting of hydrogen, fluorine and...
4459308 Pyrethroids  
There are described 2,2-dimethyl-cyclopropanecarboxylates having in position 3 of the cyclopropane ring, a polyhalogenated chain having from 3 to 6 carbon atoms. Said compounds are insecticide and...
4459305 Cyclopropanecarboxylic acid ester derivatives, a method of manufacturing them, and their uses  
The present invention relates to a cyclopropanecarboxylic acid ester derivative of the general formula I: ##STR1## in which R 1 stands for a hydrogen atom, a methyl group, a halogen atom or a...
4458090 Method of producing cyclopropanecarboxylic acids and esters  
Novel γ-lactone derivatives are provided. These lactone derivatives, when reacted with hydrogen halide in alcohol, yield γ-halogeno-δ-unsaturated carboxylic acid esters. This ring-opening...
4457940 Carboxylic acid ester derivatives, process for manufacturing said derivatives, insecticides and acaricides containing said derivatives, and method for killing insects and acarina by treating therewith  
Novel carboxylic acid ester derivatives, of the formula (I): ##STR1## process for manufacturing said derivatives, insecticides and acaricides containing said derivatives, and a method for killing...
4454343 Intermediates in a process for preparing dihalovinylcyclopropanecarboxylates  
Novel syntheses of dihalovinylcyclopropanecarboxylates, including potent insecticides, are described. The processes begin with the reaction between an alkenol and an orthoester to produce a...
4447637 Epimerization of trans chrysanthemates  
A novel process for the epimerization of alkyl trans chrysanthemates comprising reacting at a low temperature in an anhydrous organic solvent an alkyl trans chrysanthemate of the formula ##STR1##...
4442301 Process for stereoselectively synthesizing cyclopropane carboxylates  
A process for stereospecifically synthesizing lower alkyl esters of the cis-2,2-dimethyl-3-(β-fluoro-β-trifluoromethyl-vinyl)-cycl opropa necarboxylic acid.
4439446 Fluorine-containing oxyiminocyclopropanecarboxylates  
Compounds of the formula ##STR1## wherein R 1 is a hydrogen atom; or a hydrocarbyl group; m and n each is 0 or 1 and m+n is 1 or 2; and D is a hydrogen atom; a cyano group; or an ethynyl group,...
4431835 Hydrocarbonylation/carbonylation of alkyl carboxylates  
Alkyl carboxylates are hydrocarbonylated and/or carbonylated with carbon monoxide and hydrogen, in an aqueous medium, and in the presence of a catalytically effective amount of a catalyst system...
4431668 Cyclopropane carboxylic acid ester derivatives  
Cyclopropane carboxylic acid ester derivatives and optical and geometrical isomers thereof expressed by the general formula: ##STR1## wherein R 1 represents hydrogen atom or methyl group, R 2 ...
4431576 Perfumant cyclopropane-carboxylic acid derivatives  
A compound in all its possible isomeric forms and mixtures thereof of the formula ##STR1## wherein R is selected from the group consisting of (a) alkyl of 1 to 12 carbon atoms optionally...
4429149 4-Phenyl-2-indanyl esters of 1R,cis-3-(2-halo-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarbox ylic acid  
Insecticidal 4-phenyl-2-indanyl 1R,cis-3-(2-halo-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyc lopropanecarbo xylates having a racemic or optically active indanyl moiety, methods of preparation and...
4425362 3-Aminopropoxyphenyl derivatives and pharmaceutical compositions containing them  
The compounds of formula I, ##STR1## wherein the substituents have various significances, and physiologically acceptable hydrolyzable derivatives thereof having the hydroxy group in the 2 position...
4425360 Pharmacologically active novel O-substituted pyruvic acid oximes  
The present invention provides pyruvic acid oximes of the general formula: ##STR1## wherein R is a hydrogen atom, a C 3 -C 8 cycloalkyl, C 1 -C 6 alkoxy, cinnamyloxy, phenylamino,...
4424166 Preparation of 1,1-dihalogeno-alkenes  
In the preparation of a 1,1-dihalogenoalkene of the formula ##STR1## in which R 1 is a hydrogen atom or an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl, aralkenyl or aryl...
4421693 Aminosulfenyl chloride derivatives  
An aminosulfenyl chloride derivative represented by the formula (I): ##STR1## wherein R 1 and R 2 are defined in the specification, which is useful as an intermediate for the preparation of a...
4415748 Intermediates for insecticidal synthetic pyrethroids  
Intermediates and Process For Insecticidal Synthetic Pyrethroids Compounds of the formulas ##STR1## and their use in a process for preparing a pyrethroid insecticide of the formula ##STR2## wherein...
4414410 Process for preparing alkyl esters by homologation of the next lower alkyl ester  
Alkyl esters, such as ethyl acetate, are prepared by contacting the corresponding next lower carbon number alkyl ester, such as methyl acetate, with carbon monoxide and hydrogen in the presence of...
4410721 Process for the preparation of cyclopropene intermediates  
A novel cyclopropene-carboxylate of the formula ##STR1## wherein R is alkyl of 1 to 6 carbon atoms and their preparation and a process using the compounds of formula I to obtain cis compounds of...
4408066 Methyl cyclopropane-1,3-dicarboxylate  
Novel methyl esters of cis or trans configuration in their optically active form of the formual ##STR1## which are useful as intermediates for the preparation of pesticidal compounds and a process...
4405640 Substituted fluorobenzyl cyclopropane carboxylates useful as insecticides  
Insecticides of the formula ##STR1## wherein R 1 and R 2 are each selected from methyl, halomethyl, and halo; X is oxygen, sulphur, sulphonyl or a group NR 4 where R 4 represents hydrogen,...
4401673 Pesticidal 3-(buta-1',3'-dienyl)-cyclopropane-1-carboxylic acid esters  
Novel 3-(buta-1',3'-dienyl)-cyclopropane-1-carboxylic acid compounds of the formula ##STR1## wherein X 1 and X 2 are individually a halogen and A is selected from the group consisting of (A)...
4401601 Novel process for the preparation of tetra-substituted cyclopropane compounds  
A process for the preparation of tetrasubstituted cyclopropane compounds of the formula ##STR1## wherein Y is selected from the group consisting of --CN and --COOR, R is selected from the group...
4397851 2,3-Dihalo-2,3-(disubstituted) propanoate antimicrobial compounds  
Antimicrobial compounds of the formula: ##STR1## wherein Hal is bromine or chlorine; R is C 1 -4 alkyl, straight or branched chain; and one of R 1 and R 2 is hydrogen and the other is selected...
4395567 1R,Cis-3-(2-halo-3,3,3-trifluoro-1-propenyl)-2,2-di methylcyclopropanecarboxylic acid derivatives  
1R,cis-trifluoromethylethenylcyclopropanecarbonyl compounds of the formula ##STR1## in which X is halogen and R is halogen, hydroxy, lower alkoxy or an optionally substituted...
4391983 Carboxamidoesters  
Esters of formula: ##STR1## wherein R is either (a) or a group of formula: ##STR2## where X is methyl, chlorine or bromine, or (b) a group of formula: ##STR3## where Y is methyl or chlorine and n...
4391823 Novel polycyclic insecticidal esters  
Dimethyl dichlorovinylcyclopropyl carboxylic acid esters of substituted (alkyl, aryl, halo, amino, etc.) polycyclic alcohols are insecticidal.
T103205 Intermediates and process for insecticidal 4-phenyl-2-indanyl esters  
Compounds of formulae II, III and IV: ##STR1## are useful intermediates for preparation of an insecticidal compound of formula (I): ##STR2## The intermediate II is prepared by reacting the acid...
4390719 1-Methyl-2-chlorocyclopropanecarboxylic acid and its ester  
1-Methyl-2-chlorocyclopropanecarboxylic acid and its lower esters are produced by the selective hydrogenating dechlorination of the corresponding 1-methyl-2,2-dichlorocyclopropane compounds. The...
4389412 Substituted cyclopropanecarboxylic acid esters and pesticidal compositions containing the same as active ingredient  
A new pyrethroid compound which is low in toxicity to fish and a pesticidal composition containing the same as an active ingredient are provided. The above pyrethroid compound is a substituted...
Matches 251 - 300 out of 687 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >