Energy-Transfer-Enabled Truce-Smiles Rearrangement Using Sulfonamides as Sulfonyl Radical Precursors.

We have developed a method for visible-light-induced radical Smiles-Truce rearrangement reactions that use sulfonamide-derived imines as sulfonyl radical precursors. This method enables efficient functionalization of alkenes and has the advantages of having a wide substrate scope and not emitting sulfur dioxide, thereby constituting an environmentally friendly approach for the synthesis of structurally complex sulfones, alcohols, and amines.