Process for producing fluorinated vinyl ether having ester group

Abstract

A fluorinated vinyl ether having an ester group which has the formula 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 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 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.

Dependencies are inferred from the claim text.