Fluorosulfates of hexafluoroisobutylene and its higher homologs
申请人:——
公开号:US20040019237A1
公开(公告)日:2004-01-29
Hexafluoroisobutylene and its higher homologs are easily reacted with SO
3
to give fluorosulfates of the formula CH
2
═C(R)CF
2
OSO
2
F, wherein R is a linear, branched or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may contain ether oxygen. These compounds react under mild conditions with many nucleophiles to give CH
2
═C(R)CF
2
X, where X is derived from the nucleophile. This reaction provides a route to many substituted hexafluoroisobutylenes, which copolymerize easily with other fluoro- and hydrocarbon monomers such as vinylidene fluoride and ethylene.