Alkyl esters of CF.sub.2 .dbd.CFCOOH can be prepared from CF.sub.2 .dbd.CFCF.sub.2 OSO.sub.2 F by addition of bromine, reaction with F.sup.- to give CF.sub.2 BrCFBrCOF, esterification, and removal of bromine with zinc dust.
CF.sub.2 .dbd.CFCOOH的烷基酯可以通过向CF.sub.2 .dbd.CFCF.sub.2 OSO.sub.2 F中加入
溴,与F.sup.-反应得到CF.sub.2 BrCFBrCOF,酯化和使用
锌粉去除
溴来制备。