PURPOSE:To simply produce perfluoro(3-dialkylaminopropionic acid fluoride) in a high yield by electrolyzing 3-dialkylaminopropionic ester in liq. hydrogen fluoride. CONSTITUTION:3-Dialkylaminopropionic ester represented by general formula I (where each of R1 and R2 is alkyl, R1 and R2 may be different from each other and R is alkyl) is electrolyzed in liq. hydrogen fluoride. The alkyl groups of the compd. are converted into perfluoroalkyl groups and perfluoro(3- dialkylaminopropionic acid fluoride) represented by formula II (where each or R'1 and R'2 is perfluoroalkyl and R'1 and R'2 may be different from each other) is obtd. This product is useful as an intermediate for synthesizing a fluorine-contg. product such as a surfactant, agricultural chemicals or pharmaceuticals or as a monomer for a fluorine-contg. high molecular compd.
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