Darstellung und eigenschaften von octafluorbutansulfonsäure H(CF2)4SO3H und einigen ihrer derivate
作者:H. Bürger、F. Heyder、G. Pawelke、H. Niederprüm
DOI:10.1016/s0022-1139(00)82092-8
日期:1979.3
fluoride C4F9SO2F, obtained by electrofluorination of sulfolene, may contain up to 10 % of perfluorotetramethylene sulfone. Upon hydrolysis with base, this sulfone yields octafluorobutanesulfonate ion H(CF2)4SOø3 (V). Perfluorobutanesulfonic acid and octafluorobutanesulfonic acid (VI) which are readily obtained from the salts and H2SO4 can be separated via fractional distillation. VI forms a crystalline
通过环丁砜的电氟化获得的全氟丁烷磺酰氟C 4 F 9 SO 2 F可包含至多10%的全氟四亚甲基砜。当用碱的水解,这砜收率octafluorobutanesulfonate离子H(CF 2)4 SO ø 3(V)。从盐和H 2 SO 4容易获得的全氟丁烷磺酸和八氟丁烷磺酸(VI)可以通过分馏分离。VI形成结晶一水合物,熔点45°C。由VI和(CH 3)3获得三甲基甲硅烷基酯。氯化硅。加热到250°以上时,磺酸钾(Vb)释放出HF。
(F-Tetramethylene)sulfimide and (F-tetramethylene)sulfoxyimide. Some N-alkyl, N-(F-alkyl) and N-halo derivatives