MD223C2 - Method of (S)-ciano-2-phenoxybenzilic spirit preparation - Google Patents
Method of (S)-ciano-2-phenoxybenzilic spirit preparationInfo
- Publication number
- MD223C2 MD223C2 MD94-0273A MD940273A MD223C2 MD 223 C2 MD223 C2 MD 223C2 MD 940273 A MD940273 A MD 940273A MD 223 C2 MD223 C2 MD 223C2
- Authority
- MD
- Moldova
- Prior art keywords
- ciano
- spirit
- phenoxybenzilic
- toluensulfoacid
- para
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- 238000002360 preparation method Methods 0.000 title abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 238000004587 chromatography analysis Methods 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 230000003993 interaction Effects 0.000 abstract 1
- 150000002596 lactones Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to the method of preparation of the optically active benzilic spirit, especially (S) α-ciano-2-phenoxybenzilic spirit that can be utilized in the synthesis of pyretroides used in agriculture.The purpose of the invention is elaboration of the method of preparation of new benzilic spirit on the base of which the prepared pyrotroides possess high activity.The method is realized by interaction of (R,S) α-ciano-2-phenoxybenzilic spirit with lactone cis-2,2-dimethyl-3S-(dioxymethyl) cyclopropane-1R-carbonic acid at the temperature of 60-80°C in vacuum in the presence para-toluensulfoacid with further separation of para-toluensulfoacid by chromatography from obtained mixture of the isomers (1R, 5S) 6,6-dimethyl-4(R,S)-ciano(32-phenyloxyphenyl)methoxy3-oxabicyclo (3,1,0) gexan-2-on that is undergone hydrolysis at the boiling in the presence of para-toluensulfoacid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7802621A FR2421875A1 (en) | 1978-01-31 | 1978-01-31 | OPTICALLY ACTIVE SUBSTITUTE BENZYL ALCOHOL AND ITS PREPARATION PROCESS |
| SU792714653A SU957764A3 (en) | 1978-01-31 | 1979-01-19 | Process for producing (s)=alpha-cyano-3-phenoxybenzyl alcohol |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD223B1 MD223B1 (en) | 1995-06-30 |
| MD223C2 true MD223C2 (en) | 1995-11-30 |
Family
ID=26220423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MD94-0273A MD223C2 (en) | 1978-01-31 | 1994-09-08 | Method of (S)-ciano-2-phenoxybenzilic spirit preparation |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD223C2 (en) |
-
1994
- 1994-09-08 MD MD94-0273A patent/MD223C2/en unknown
Non-Patent Citations (2)
| Title |
|---|
| Brevet nr. 2240914, FR, Int. Cl. C 07 C 69/74, 1974 * |
| Степаненко Б.И. Курс органической химии, М., Высшая школа. 1966, с. 222-223 * |
Also Published As
| Publication number | Publication date |
|---|---|
| MD223B1 (en) | 1995-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES472934A1 (en) | Oligo-heteropolysaccharides having a heparin-like activity method for their preparation and pharmaceutical compositions based thereon | |
| IT7826552A0 (en) | PREPARATION OF (1R,CIS)-CARONALDEHYDE ACID. | |
| RO81958B (en) | Process for the preparation of d-2-isopropyl-2-parachlorophenyl acetic acid ester with alpha-cyano-3- phenoxy benzylic alcohol (s) | |
| ES469477A1 (en) | Procedure to prepare racemic or optically active pentaciclic products of the apovincaminic acid group (Machine-translation by Google Translate, not legally binding) | |
| SU619147A1 (en) | Method of preparing grape seedlings to planting | |
| JPS549247A (en) | Preparation of menthone | |
| FR1241124A (en) | Process for the preparation of alkyl ethers of o-cresotic acid esters, substituted by basic residues | |
| PH13568A (en) | Use of cyclic esters to prepare 2,3-dichloro-4-(2-phenoyl)phenoxyacetic acid | |
| JPS53149911A (en) | Preparation of alkoxyalkykidene compounds | |
| MD244C2 (en) | Method of preparation of ester of alcohol (S)-a-cyai-3-fenoxybenzol and 1R, cis-2,2-domethyl-3-(2'2'-dibromvinil)-cyclopropan-1-carbonic acid | |
| GB1497723A (en) | Octahydrobenzo-(c)(1,6)-naphthyridine derivative | |
| FR2432517A1 (en) | PROCESS FOR THE PREPARATION OF A THIOPHENE DERIVATIVE AND DERIVATIVE OBTAINED BY THIS PROCESS | |
| JPS5352687A (en) | Preparation of choline-oxidase | |
| ES479628A1 (en) | Process for preparing p-chlorophenoxy-acetyl-piperonylpiperazine hydrochloride | |
| JPS5368766A (en) | Preparation of diterpene | |
| JPS53103412A (en) | Preparation of farnesyl acetic acid or its ester | |
| JPS5435280A (en) | Preparation of yeast cells | |
| GB1199769A (en) | Processes for the Preparation of Equilenin and Homologues Thereof, and the Novel Intermediates Prepared Thereby | |
| JPS53130619A (en) | Preparation of high purity isoprenylacetic acid | |
| JPS5395985A (en) | Preparation of aminopyrazinecarboxylic acid | |
| FR2426048A1 (en) | ||
| JPS53113078A (en) | Culture of yeast | |
| JPS5398938A (en) | Novel process for their preparation of insecticides | |
| GB1313246A (en) | Process for the preparation of pure dehydroacetic acid | |
| FR2380255A1 (en) | DICYANOVINYLHYDRAZONOMALONONONITRILS AND THEIR USE AS HERBICIDES |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 1K4A | Payment of annual fees |