Photoredox/Iron Dual-Catalyzed Amination of Sulfenamides for the Synthesis of Primary Sulfinamidines.

A mild and efficient photoredox/iron dual-catalyzed method for the synthesis of primary sulfinamidines from readily available sulfenamides has been developed. Reactions proceed smoothly and afford various primary sulfinamidines in moderate to excellent yields. It exhibits a range of sulfenamide substrates and good functional group compatibility. Scale-up synthesis and further transformations demonstrate the scalability and synthetic versatility of this protocol.