Process for producing fluorinated vinyl ether having ester group
US4153804A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1978 |
| Grant date | May 8, 1979 |
| Priority date | — |
| Expiry date | Jun 21, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/653
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A fluorinated vinyl ether having an ester group which has the formula EQU CF.sub.2 .dbd. CFOCF.sub.2 (CF(CF.sub.3)OCF.sub.2).sub.n-1 (Rf).sub.m CO.sub.2 R wherein n represents an integer of 1 to 5; m represents 0 or 1; Rf represents a C.sub.1 -C.sub.10 bifunctional perfluoro group and R represents an alkyl group, is produced by reacting fluorinated acyl fluoride having an ester group which has the formula EQU FOC(CF(CF.sub.3)OCF.sub.2).sub.n (Rf).sub.m CO.sub.2 R with an alkali metal carbonate to produce an alkali metal salt of fluorinated carboxylic acid having an ester group which has the formula EQU MOOC(CF(CF.sub.3)OCF.sub.2).sub.n (Rf).sub.m CO.sub.2 R wherein M represnts an alkali metal; And then, thermally decomposing the alkali metal salt of fluorinated carboxylic acid having an ester group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.