JPS5657755A - Preparation of more highly active carboxylic ester - Google Patents
Preparation of more highly active carboxylic esterInfo
- Publication number
- JPS5657755A JPS5657755A JP13308979A JP13308979A JPS5657755A JP S5657755 A JPS5657755 A JP S5657755A JP 13308979 A JP13308979 A JP 13308979A JP 13308979 A JP13308979 A JP 13308979A JP S5657755 A JPS5657755 A JP S5657755A
- Authority
- JP
- Japan
- Prior art keywords
- cis
- trans
- cypermethrin
- preparation
- highly active
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain the titled compound useful as an insecticide and acaricide readily and in high purity, by depositing and removing cis- or trans- X from cis- or trans - cypermethrin respectively and selectively.
CONSTITUTION: A mixture consisting of an ester having the d-cis form on the acid side and the R- form on the alcohol side and an antipode thereof (cis X) or a mixture consisting of the d-trans form on the acid side and the R- form on the alcohol side and an antipode thereof ( trans X) is deposited from α-cyano-3-phenoxybenzyl ester of cis- or trans-2,2-dimethyl -3-(2,2-dichlorovinyl)cyclopropanecarboxylic acid ( cis- or trans-cypermethrin) respectively and removed by means of filtration or decantation to give cypermethrin rich in the cis Y form the mother liquor.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13308979A JPS5657755A (en) | 1979-10-15 | 1979-10-15 | Preparation of more highly active carboxylic ester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13308979A JPS5657755A (en) | 1979-10-15 | 1979-10-15 | Preparation of more highly active carboxylic ester |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5657755A true JPS5657755A (en) | 1981-05-20 |
Family
ID=15096585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13308979A Pending JPS5657755A (en) | 1979-10-15 | 1979-10-15 | Preparation of more highly active carboxylic ester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5657755A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4845126A (en) * | 1985-01-16 | 1989-07-04 | Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt. | Insecticidal composition comprising more than one active ingredient |
CN103819363A (en) * | 2014-03-21 | 2014-05-28 | 中国农科院植保所廊坊农药中试厂 | Method of improving transposition synthetic yield of beta-cypermethrin |
-
1979
- 1979-10-15 JP JP13308979A patent/JPS5657755A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4845126A (en) * | 1985-01-16 | 1989-07-04 | Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt. | Insecticidal composition comprising more than one active ingredient |
US4963584A (en) * | 1985-01-16 | 1990-10-16 | Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt. | Pyrethroidal composition comprising more than one active ingredients |
US5013754A (en) * | 1985-01-16 | 1991-05-07 | Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt. | Insecticidal composition comprising more than one active ingredient |
CN103819363A (en) * | 2014-03-21 | 2014-05-28 | 中国农科院植保所廊坊农药中试厂 | Method of improving transposition synthetic yield of beta-cypermethrin |
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