One‐pot sulfa‐Michael addition reactions of disulfides using a pyridine‐borane complex under blue light irradiation

Abstract We report a one‐pot sulfa‐Michael addition reaction using a disulfide and a pyridine‐borane complex under blue light irradiation. This novel synthetic approach has a broad substrate scope and a high functional group tolerance. Mechanistic studies suggest that sequential radical and ionic processes provide a practical solution for constructing carbon–sulfur bonds.