Reaction of fluoroolefins with sulfur chlorides in hydrogen fluoride–boron trifluoride system
作者:Viacheslav A. Petrov
DOI:10.1016/s0022-1139(01)00530-9
日期:2001.12
The reaction of tetrafluoroethylene (1), perfluorovinyl ether (3), hexafluoropropene (5), and 2-H-pentafluoropropene (7) with sulfur chlorides in anhydrous HF/BF3 system has been studied. The reaction with S2Cl2 at 40–100 °C produces a mixture of the corresponding di- and trisulfides along with smaller amounts of sulfenyl- and thiosulfenyl chlorides. In case of 7 the use of BF3 catalyst results higher
Highly fluorinated heterocycles. Part VI. Fluorination and rearrangement of 1,4-dithian
作者:J. Burdon、I. W. Parsons
DOI:10.1039/j39710000355
日期:——
1,4-Dithian has been fluorinated over potassium tetrafluorocobaltate(III) to give mainly the rearrangement products, polyfluoro(2-methyl-1,3-dithiolans)(five compounds, 59% of the fluorination mixture), together with the polyfluoro-1,4-dithians (seven compounds, 27% of the mixture). The rearrangements are believed to proceed via carbonium ions. The degree of fluorination is high compared to 1,4-dioxan;