Tetrahedron letters

2-Trifluoromethyl-1, 3-dithianylium triflate: a convenient 'masked'electrophilic pentafluoroethylation reagent

DV Sevenard, P Kirsch, E Lork, GV Röschenthaler

Index: Sevenard, Dmitri V.; Kirsch, Peer; Lork, Enno; Roeschenthaler, Gerd-Volker Tetrahedron Letters, 2003 , vol. 44, # 32 p. 5995 - 5998

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Citation Number: 12

Abstract

With 2-trifluoromethyl-1, 3-dithianylium triflate for the first time the synthesis, isolation and full structural characterization of an α-perfluoroalkylcarbenium salt was achieved. The title compound can be easily obtained on a preparative scale. The thermally stable dithianylium salt in combination with fluorodesulfurization chemistry is a promising novel reagent for the electrophilic polyfluoroalkylation of organic substrates, demonstrated by the ...