JPS57142926A - Preparation of difluoroethene derivative - Google Patents
Preparation of difluoroethene derivativeInfo
- Publication number
- JPS57142926A JPS57142926A JP2687781A JP2687781A JPS57142926A JP S57142926 A JPS57142926 A JP S57142926A JP 2687781 A JP2687781 A JP 2687781A JP 2687781 A JP2687781 A JP 2687781A JP S57142926 A JPS57142926 A JP S57142926A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- formula
- difluoroethene
- derivative
- aryl
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain a difluoroethene derivative useful as an intermediate, etc. for insecticides from inexpensive industrially easily available raw materials efficiently, by reacting a difluoromethylphosphonic acid derivative with a carbonyl compound.
CONSTITUTION: A compound of formulaI(R3 is lower alkyl of aryl) is reacted with a compound of formula II (R1 and R2 are H, alkyl, alkenyl, alkynyl, aryl or cycloalkyl; R1 and R2 with carbon atoms to which they are linked form cycloalkylidene or cycloalkenylidene) in a solvent, preferably in the presence of a base, e.g. an alkali matellic amide, to give a compound of formula III. The compound of formulaIcan be easily synthesized by reacting an inexpensive easily available sodium salt of phosphorous diester with chlorodifluoromethane. The compound of formula II is also an industrially easily avilable compound.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2687781A JPS57142926A (en) | 1981-02-27 | 1981-02-27 | Preparation of difluoroethene derivative |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2687781A JPS57142926A (en) | 1981-02-27 | 1981-02-27 | Preparation of difluoroethene derivative |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57142926A true JPS57142926A (en) | 1982-09-03 |
Family
ID=12205518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2687781A Pending JPS57142926A (en) | 1981-02-27 | 1981-02-27 | Preparation of difluoroethene derivative |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57142926A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62286937A (en) * | 1986-05-30 | 1987-12-12 | バイエル・アクチエンゲゼルシヤフト | Halogenoolefin |
| US4997855A (en) * | 1987-03-02 | 1991-03-05 | Fmc Corporation | Vinyl fluorides and pesticidal uses |
| US5043490A (en) * | 1990-05-30 | 1991-08-27 | E. I. Du Pont De Nemours And Company | Novel fluorinated dienes |
-
1981
- 1981-02-27 JP JP2687781A patent/JPS57142926A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62286937A (en) * | 1986-05-30 | 1987-12-12 | バイエル・アクチエンゲゼルシヤフト | Halogenoolefin |
| US4968851A (en) * | 1986-05-30 | 1990-11-06 | Bayer Aktiengesellschaft | Halogenoolefin pesticides |
| AU604018B2 (en) * | 1986-05-30 | 1990-12-06 | Bayer Aktiengesellschaft | A method for combating animal pests using long-chain halogenoolefins |
| US4997855A (en) * | 1987-03-02 | 1991-03-05 | Fmc Corporation | Vinyl fluorides and pesticidal uses |
| US5043490A (en) * | 1990-05-30 | 1991-08-27 | E. I. Du Pont De Nemours And Company | Novel fluorinated dienes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IE821846L (en) | Carbamimidoyl-1-carbadethiapen-2-em-3 carboxylic acid | |
| JPS57183756A (en) | Preparation of 4-hydroxy-2-pyrrolidone | |
| JPS55130991A (en) | Pyrazole phosphate esters, their preparation and insecticide and acaricide | |
| JPS57142926A (en) | Preparation of difluoroethene derivative | |
| JPS5522626A (en) | Preparation of sorbic acid or its derivative | |
| JPS57192340A (en) | Isoprenylamine derivative | |
| SE8205563L (en) | SET TO MAKE Tartaric Acids | |
| JPS56138177A (en) | Preparation of 5-acyloxymethylfurfural | |
| JPS54106421A (en) | Preparation of carboxylic acid derivative | |
| JPS5767599A (en) | Preparation of 5-beta-choleic acid derivative | |
| JPS5785351A (en) | Preparation of amidinecarboxylic acid | |
| JPS5795996A (en) | Preparation of 1-substituted oxycarbonyl-2- benzimidazolylmethylphosphonic acid monoester | |
| JPS5677266A (en) | Synthesis of 2,3-dioxopiperazine derivative | |
| ES8206522A1 (en) | Process for the Preparation of Apovincaminic Acid Esters | |
| JPS54109974A (en) | Novel imidazolecarboxylic ester derivative | |
| JPS57183758A (en) | Preparation of (n-methylpyrrol-2-)acetothioamide derivative | |
| JPS56161388A (en) | Novel vincamine derivative | |
| JPS5592345A (en) | Preparation of optically-active cyclopropanecarboxylic acid | |
| JPS5686190A (en) | Novel silylating agent and its preparation | |
| JPS56120681A (en) | Preparation of (z)-8-nonen-5-one derivative | |
| ES8202793A1 (en) | Preparation of 1*33dithioll22ylidene malonate | |
| JPS57130991A (en) | Naphthylmethylphosphonic acid ester derivative, its preparation and herbicide containing said derivative as active component | |
| JPS55145664A (en) | Dihydroindole derivative | |
| JPS5690052A (en) | Preparation of 4-hydroxybenzyl nitrile derivative | |
| KR820000974B1 (en) | Process for the preparation of o-pyrazol-4-yl-0-ethyl-s-n-propyl-(thiono)-thiol-phosphoric adic ester |