Jp. Begue et al., CHEMOSELECTIVE SYNTHESIS OF TRIFLUOROMETHYLVINYL SULFOXIDES AND SULFONES THROUGH OXIDATION OF CORRESPONDING SULFIDES, Synthesis, (3), 1996, pp. 399
At low temperatures, perfluoro-cis-2,3-dialkyloxaziridines 4 oxidize 1
-trifluoromethylvinyl sulfides 1 to the corresponding sulfoxides 2 in
quantitative yields. By using 3-chloroperoxybenzoic acid, or the same
oxaziridines at room temperature, sulfones 3 are formed exclusively.