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.
Fluorine-containing compounds, and their preparation and use
申请人:Daiken Industries, Ltd.
公开号:US04739123A1
公开(公告)日:1988-04-19
Process for preparing 2-trifluoro-methyl-3,3,3-trifluoropropene.
制备2-三氟甲基-3,3,3-三氟丙烯的过程。
Reactions of 2,2-bis(trifluoromethyl)oxirane with alcohols under phase transfer catalysis
作者:Viacheslav A. Petrov
DOI:10.1016/j.jfluchem.2003.11.026
日期:2004.4
It was demonstrated that the reaction of 2,2-bis(trifluoromethyl)oxirane (1) with variety of alcohols could be successfully carried out under phase transfer catalysis conditions using sodium or potassium hydroxide as a base. For example, reaction of CH3OH, C2H5OCH2CH2OH, HOCH2CH2OH with one or two moles of 1 in the presence of the catalyst [(C4H9)4N+HSO4−] gives the corresponding tertiary alcohols