MD205C2 - Method of preparation of the crystal enantiamorfous pair of isomers of (S)-a-cyano-3-(phenoxybenzylic ether (1R, cis)-3(2-3-chloriul-3, 3, 3 - trifluorine prop-1 en-1 il)-2,2 dimethylcyclopropane acid and (R)- )-a-cyano-3-phenoxybenzilic ether (1R, cis)-3-(2-2-chloriune -3, 3, 3-fluorne prop-1-en-1-il)-2,2-dimethylcyclopropanic acid. - Google Patents

Method of preparation of the crystal enantiamorfous pair of isomers of (S)-a-cyano-3-(phenoxybenzylic ether (1R, cis)-3(2-3-chloriul-3, 3, 3 - trifluorine prop-1 en-1 il)-2,2 dimethylcyclopropane acid and (R)- )-a-cyano-3-phenoxybenzilic ether (1R, cis)-3-(2-2-chloriune -3, 3, 3-fluorne prop-1-en-1-il)-2,2-dimethylcyclopropanic acid.

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Publication number
MD205C2
MD205C2 MD94-0229A MD940229A MD205C2 MD 205 C2 MD205 C2 MD 205C2 MD 940229 A MD940229 A MD 940229A MD 205 C2 MD205 C2 MD 205C2
Authority
MD
Moldova
Prior art keywords
cyano
ether
acid
prop
cis
Prior art date
Application number
MD94-0229A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD205B1 (en
Inventor
Michael John Robson
John Crosby
Original Assignee
Imperial Chemical Industries Plc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from SU833652706A external-priority patent/SU1225483A3/en
Application filed by Imperial Chemical Industries Plc filed Critical Imperial Chemical Industries Plc
Publication of MD205B1 publication Critical patent/MD205B1/en
Publication of MD205C2 publication Critical patent/MD205C2/en

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Abstract

Method of preparation of the crystal enantiomorfous isomers of (S)--α-cyano-3-phenoxybenzilic ether-3-(2-chlorine-3,3,3-fluorine prop-1-en-1-il)-2-2-dimethylcyclopropanic acid and (R)-α-cyano-3-phenoxybenzilic ether of 1(S), cis)-3-(2-2-chlorine-3,3,3-fluorineprop-1-en-1-il)-2-2-dimethylcyclopropanic acid.The method consists in the fact, that α-cyano-3-phenoxybenzilic ether-3-(2-chlorine-3,3,3-fluorineprop-1-en-1-il)-2-2-dimethylcyclopropanic acid is solved in the organic solvent, selected from C2-C5-alkanols or C1-C8-alkans at mass ratio 1:1-2, obtaining solvent is cold up to (-10)-(+5)°C, add seed crystels of enantiomarphous pais of isomers so that they are semained nonsoluble during 0,4-33 days, then precipitated crystals are separated or in case of necesity arc recrystallized.Preparing compound has more higher insecticide activity.
MD94-0229A 1982-10-11 1994-05-25 Method of preparation of the crystal enantiamorfous pair of isomers of (S)-a-cyano-3-(phenoxybenzylic ether (1R, cis)-3(2-3-chloriul-3, 3, 3 - trifluorine prop-1 en-1 il)-2,2 dimethylcyclopropane acid and (R)- )-a-cyano-3-phenoxybenzilic ether (1R, cis)-3-(2-2-chloriune -3, 3, 3-fluorne prop-1-en-1-il)-2,2-dimethylcyclopropanic acid. MD205C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8228983 1982-10-11
SU833652706A SU1225483A3 (en) 1982-10-11 1983-10-10 Method of producing crystalline enantiomeric pair of isomers of (s)-alpha-cyano-3-phenoxybenzyl ester of (1r,cis)-3-(z-3-chlor-3,3,3)-trifluorprop-1-en-1-yl-2,2-dimethylcyclopropionic acid and (r)-alpha-cyano-3-phenoxybenzyl ester of (1s,cis9-3-(z-2-chlor-3,3,3-trifluorprop-1-en-1yl))-2,2-dimethylcyclopropionic acid

Publications (2)

Publication Number Publication Date
MD205B1 MD205B1 (en) 1995-05-31
MD205C2 true MD205C2 (en) 1995-11-30

Family

ID=26284088

Family Applications (1)

Application Number Title Priority Date Filing Date
MD94-0229A MD205C2 (en) 1982-10-11 1994-05-25 Method of preparation of the crystal enantiamorfous pair of isomers of (S)-a-cyano-3-(phenoxybenzylic ether (1R, cis)-3(2-3-chloriul-3, 3, 3 - trifluorine prop-1 en-1 il)-2,2 dimethylcyclopropane acid and (R)- )-a-cyano-3-phenoxybenzilic ether (1R, cis)-3-(2-2-chloriune -3, 3, 3-fluorne prop-1-en-1-il)-2,2-dimethylcyclopropanic acid.

Country Status (3)

Country Link
LT (1) LT2115B (en)
LV (1) LV5122A3 (en)
MD (1) MD205C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD523Z (en) * 2012-01-16 2013-02-28 Александру ГУЛПА Plastic cover for jar

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183948A (en) * 1977-01-24 1980-01-15 Imperial Chemical Industries Limited Halogenated esters

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183948A (en) * 1977-01-24 1980-01-15 Imperial Chemical Industries Limited Halogenated esters

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Мельников Н. И др. Химические средства защиты растений (пестициды). Справочник. М.: Химия, 1980, с. 183 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD523Z (en) * 2012-01-16 2013-02-28 Александру ГУЛПА Plastic cover for jar

Also Published As

Publication number Publication date
LT2115B (en) 1993-08-15
MD205B1 (en) 1995-05-31
LV5122A3 (en) 1993-06-10

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IF99 Valid patent on 19990615

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