Novel perfluoroalkylation of alkenes with perfluoroalkanesulphonyl chlorides catalysed by a ruthenium(II) complex

Abstract
The perfluoroalkylation of acyclic and cyclic alkenes by perfluoroalkanesulphonyl chlorides 1 has been investigated in the presence of a ruthenium(II) catalyst. The addition reactions proceeded smoothly, with extrusion of sulphur dioxide, in alkenes possessing either an electron-donating or an electron-withdrawing group, at 120 °C to give the corresponding chloroperfluoroalkylated compounds in high yield.

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