Hexafluoroisopropyl esters of alpha -fluoroacrylic acid

摘要

Certain esters of alpha -fluoroacrylic acid are accessible by hydrolysis of an alpha -hydroxymethyl- alpha -fluoromalonate followed by decarboxylation of the hydrolysis product. Hexaisopropyl alpha -fluoroacrylate can be prepared by hydroxymethylation of dimethyl alpha -fluoromalonate, decarboxylation and dehydration of the resulting dimethyl alpha -hydroxymethyl- alpha -fluoromalonate and esterification of the resulting alpha -fluoroacrylic acid with hexafluoroisopropanol. Hexafluoroisopropyl alpha -fluoroacrylate is a distillable liquid which polymerises as soon as it is exposed to light. It is suitable as starting material for the preparation of fluoropolymers.