| 摘要 |
<p>A process for preparing perfluoroalkenyl sulfonyl fluorides (I) Rf-CF=CF-SO2F (I) wherein Rf is F or a perfluoroalkyl group of from 1 to 9 carbon atoms is disclosed, in which process a perfluoroalkyl (sulfonyl fluoride) monofluoroacetyl fluoride of formula Rf-CF2-CF(COF)SO2F (II) is used as the starting material. The starting material is contacted with a reactant selected from oxides of elements of the Groups IA, IIA, IIB, IIIA and IVA of the Periodic Table of Elements at a temperature of from about 150 to about 450 DEG C, and the compound (I) is recovered from the reaction effluent.</p> |
