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.Info
- 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
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD523Z (en) * | 2012-01-16 | 2013-02-28 | Александру ГУЛПА | Plastic cover for jar |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4183948A (en) * | 1977-01-24 | 1980-01-15 | Imperial Chemical Industries Limited | Halogenated esters |
-
1992
- 1992-12-07 LV LV920258A patent/LV5122A3/en unknown
-
1993
- 1993-03-05 LT LTRP392A patent/LT2115B/en not_active IP Right Cessation
-
1994
- 1994-05-25 MD MD94-0229A patent/MD205C2/en active IP Right Grant
Patent Citations (1)
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)
Title |
---|
Мельников Н. И др. Химические средства защиты растений (пестициды). Справочник. М.: Химия, 1980, с. 183 * |
Cited By (1)
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 |
---|---|
LV5122A3 (en) | 1993-06-10 |
LT2115B (en) | 1993-08-15 |
MD205B1 (en) | 1995-05-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG4A | Patent for invention issued | ||
IF99 | Valid patent on 19990615 |
Free format text: EXPIRES: 20031010 |