Silver-Mediated N-Trifluoromethylation of Sulfoximines.

An unprecedented approach to N-trifluoromethylations of electron-rich nucleophilic sites following a radical pathway is reported. Accordingly, various sulfoximines (19 examples) have been N-trifluoromethylated, providing previously unreported products with satisfying functionality tolerance in moderate to good yields. With a C-N bond length at the N-CF3 moiety of 1.341 Å the respective linkage is shorter than a traditional C-N single bond and comparable with that of a C-N double bond.