MD282C2 - Method of obtaining a mixture of cypermethrin isomers in form of stabilized crystalline product - Google Patents
Method of obtaining a mixture of cypermethrin isomers in form of stabilized crystalline productInfo
- Publication number
- MD282C2 MD282C2 MD94-0329A MD940329A MD282C2 MD 282 C2 MD282 C2 MD 282C2 MD 940329 A MD940329 A MD 940329A MD 282 C2 MD282 C2 MD 282C2
- Authority
- MD
- Moldova
- Prior art keywords
- isomers
- mixture
- couple
- cypermethrin
- obtaining
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention is related to a method of obtaining a mixture of cypermethrin isomers in form of stabilised crystalline product with the formula:in which carbon atoms in position 1,3 and a are chiral carbon atoms, waved line indicates a cys-or transconfiguration in relation with cyclopropane ring, the final mixture of isomers from 8 cypermethrin isomers, theoretically possible, containing, at least 95% or of the couple of isomers IR treans S and IS trans R (Ib) or of the mixture of couple of isomers IR cis S and IS cis R (Ia) and of couple of isomers (Ib) în relations (Ia):(Ib)= 55:45-25:75, obtained through the lop-sided transformation of degree II in the presence of an amine base and a dissolver from initial mixture of cypermethrin isomers, the mixture containing alike the couple of isomers (16) cys-and the other transisomers or couple of isomers Ia+Ib in one undesirable relation.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU16789A HU199390B (en) | 1989-01-17 | 1989-01-17 | Process for producing mixture of cipermetrin's enantiomeres |
PCT/HU1990/000006 WO1990008132A1 (en) | 1989-01-17 | 1990-01-17 | Process for the preparation of cypermethrine isomers |
SU904831010A RU2051886C1 (en) | 1989-01-17 | 1990-01-17 | Process for preparing mixture of cipermetrine isomers in form of stabilized crystalline product |
Publications (2)
Publication Number | Publication Date |
---|---|
MD282B1 MD282B1 (en) | 1995-09-30 |
MD282C2 true MD282C2 (en) | 1996-01-31 |
Family
ID=26317171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MD94-0329A MD282C2 (en) | 1989-01-17 | 1994-08-25 | Method of obtaining a mixture of cypermethrin isomers in form of stabilized crystalline product |
Country Status (1)
Country | Link |
---|---|
MD (1) | MD282C2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0067461A1 (en) * | 1981-05-26 | 1982-12-22 | Shell Internationale Researchmaatschappij B.V. | Preparation of cyanobenzyl cyclopropane carboxylates |
EP0109113A1 (en) * | 1982-11-11 | 1984-05-23 | Shell Internationale Researchmaatschappij B.V. | Process for preparing cyclopropane carboxylic acid ester derivatives |
EP0208758A1 (en) * | 1985-01-16 | 1987-01-21 | Chinoin Gyogyszer Es Vegyeszet | Pyrethroidal composition comprising more than one active ingredients. |
-
1994
- 1994-08-25 MD MD94-0329A patent/MD282C2/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0067461A1 (en) * | 1981-05-26 | 1982-12-22 | Shell Internationale Researchmaatschappij B.V. | Preparation of cyanobenzyl cyclopropane carboxylates |
EP0109113A1 (en) * | 1982-11-11 | 1984-05-23 | Shell Internationale Researchmaatschappij B.V. | Process for preparing cyclopropane carboxylic acid ester derivatives |
EP0208758A1 (en) * | 1985-01-16 | 1987-01-21 | Chinoin Gyogyszer Es Vegyeszet | Pyrethroidal composition comprising more than one active ingredients. |
EP0215010A1 (en) * | 1985-01-16 | 1987-03-25 | Chinoin Gyogyszer Es Vegyeszet | Insecticidal composition comprising more than one active ingredients. |
Also Published As
Publication number | Publication date |
---|---|
MD282B1 (en) | 1995-09-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0133938A3 (en) | Process for preparing amines | |
AU7264391A (en) | Nitride product, method and apparatus | |
MX9303408A (en) | PROCESS TO PREPARE ZEOLITE ZSM-22 AND RESULTING PRODUCT. | |
MX9603110A (en) | Crystalline-bioavailable axetyl cephuroxime. | |
GR3023585T3 (en) | Substituted quinolinecarboxylic acids | |
DE60104398D1 (en) | METHOD FOR PRODUCING TRIETHANOLAMINE AND PRODUCT OBTAINED BY THE METHOD | |
MD282C2 (en) | Method of obtaining a mixture of cypermethrin isomers in form of stabilized crystalline product | |
HU904201D0 (en) | Process for producing peptides with haemoregulating effect and pharmaceutical preparatives containing these compounds | |
ES2094676A1 (en) | Cultivation of shellfish | |
EP0414262A3 (en) | Process for the preparation of cyclic amino anticonvulsant compounds | |
TW263492B (en) | ||
DE3061193D1 (en) | Process for the production of homo- and copolymers of alpha-monoolefines | |
JPS56150062A (en) | Production of indole or indole derivative | |
DE69009225D1 (en) | Process for the production of boron nitride. | |
ES2007786A6 (en) | A method for the production of HNS II. | |
EP0676475A4 (en) | Process for producing saccharide. | |
HUT49335A (en) | Process for production of izotiasolones substituated by halogene | |
MD466G2 (en) | Process for preparation of cypermethrine isomers mixtures | |
HU9203344D0 (en) | Method for producing substituted indoles | |
GEP19981466B (en) | Process for the preparation of cypermethrine isomers | |
MD500G2 (en) | Stable arthropodical destruction device | |
HUT36682A (en) | Fungicide preparatives consisting of 2,2-dichlor-/cis/-3-metil-/trans/3-chlor-metil cyclopropane-methanol and process for production of the compound | |
TW330927B (en) | Process for the preparation of α,ω-bromochloroalkanes | |
IT1248979B (en) | Process for the production of surfactin | |
DE3162336D1 (en) | Process for producing alpha monoolefin homo and copolymers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG4A | Patent for invention issued | ||
IF99 | Valid patent on 19990615 |
Free format text: EXPIRES: 20090825 |
|
MM4A | Patent for invention definitely lapsed due to non-payment of fees |