Monomeric NSCI adds to the CC double bond of highly fluorinated alkenes R–CFCF2(R = F, CF3, SF5, Cl), to give the corresponding chlorosulfenylaziridines.
Trifluorovinylsulfur pentafluoride (SF5CFCF2) and carbonyl fluoride will add, in the presence of cesium fluoride and acetonitrile, to form SF5CF(CF3)C(O)F. This new acid fluoride serves as a source for preparing derivatives containing the SF5CF(CF3) - grouping. The following new compounds have been prepared and characterized: SF5CF(CF3)X where X = C(O)F, C(O)CH3, C(O)OH, C(O)NH2, CN. The dimer, (SF5CFCF2)2
Perfluoroalkyl derivatives of sulphur. Part IX. Reaction of sulphur chloride pentafluoride with trifluoroethylene
作者:R. E. Banks、R. N. Haszeldine、W. D. Morton
DOI:10.1039/j39690001947
日期:——
U.v. irradiation of a mixture of sulphur chloride pentafluoride and trifluoroethylene yields a mixture (ca. 7 : 3) of 2-chloro-1,2,2-trifluoroethylsulphur pentafluoride (I) and 2-chloro-1,1,2-trifluoroethylsulphur pentafluoride (II). Both (I) and (II) give, inter alia, trifluoroethylene and chlorotrifluoroethylene when pyrolysed. Isomer (I) yields perfluorovinylsulphur pentafluoride when treated with
The epoxidation of two fluorinated pentafluorothio olefins, F5SCHCF2 and F5SCFCF2, was achieved by treatment with NaOCl under phase transfer catalytic conditions at lowered temperatures. Some reactions were run and it was found that in anionic reactions loss of the SF5 group generally occurred.