Abstract
New methods for perfluoroalkylation of carbon nitrogen double bonds have been developed. Addition of (trifluoromethyl)trimethylsilane (TMSCF 3) to α,N-diarylnitrones produced a series of α-(trifluoromethyl)-N-hydroxyl amines protected as their O-trimethylsilyl derivatives. An alternate procedure using pentafluoroethyllithium (F 5C 2Li) and chlorotrimethylsilane (TMSCl) afforded O-trimethylsilyl-α-(pentafluoroethyl)-N-hydroxyl amines.
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