Electrochemical cleavage of sulfonamides: an efficient and tunable strategy to prevent ß-fragmentation and epimerization.

The electrochemical reduction of sensitive sulfonamides is described. The addition of a benzoyl group on the nitrogen atom facilitates the reductive cleavage of sulfonamides preventing ß-fragmentation and epimerization. This strategy was successfully applied to the cyclopropylamine and to α-amino stannanes.