α-Carbamoylsulfides as N -Carbamoylimine Precursors in the Visible Light Photoredox-Catalyzed Synthesis of α,α-Disubstituted Amines

A general and practical photoredox-promoted addition of nucleophiles to N-acylimines generated in situ from α-amidosulfides using Ru(bpy)3(PF6)2 as the photocatalyst is reported. The broad scope of the reaction toward various nucleophiles and amidosulfide derivatives was explored. This novel protocol provides a rapid, mild, and efficient access to valuable α,α-disubstituted amines in respectable yields