| 摘要 |
The invention relates to a process for preparing an oxysulphide and fluorinated compound, which comprises reacting, in the presence of an organic solvent, at least one compound of formula Ea-X (I), in which Ea is a fluorine atom or a group preferably having from 1 to 10 carbon atoms, chosen from fluoroalkyls, perfluoroalkyls and fluoroalkenyls, and X is bromine, chlorine or iodine, and a sulphur oxide, said process being such that the concentration of sulphur oxide dissolved in the reaction medium is maintained at a value between 0.2% and 3% by weight. The use of an oxysulphide and fluorinated compound thus obtained for the synthesis of a sulphonimide compound of formula (Ea-SO2)2NH and of salts thereof (Ea-SO2)2NM, of a fluorinated sulphonic acid compound of formula Ea-SO2OH or of a fluorinated sulphonic anhydride compound of formula (Ea-SO2)2O is also described. |
