Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives
申请人:Cherstkov Filippovich Victor
公开号:US20070167651A1
公开(公告)日:2007-07-19
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.
六氟异丁烯及其更高级同系物易与SO3反应,生成化学式为CH2═C(R)CF2OSO2F的氟磺酸盐,其中R为由1至10个碳原子组成的线性支链或环状氟烷基团,可能含有醚氧。这些化合物在温和条件下与许多亲核试剂反应,生成CH2═C(R)CF2X,其中X来自亲核试剂。该反应提供了许多取代的六氟异丁烯的途径,这些化合物易与其他氟烃和碳氢单体如氟乙烯和乙烯共聚。