Iodine-Catalyzed Regioselective 2-Sulfonylation of Indoles with Sodium Sulfinates

Abstract

Iodine-catalyzed selective 2-arylsulfonyl indole formation from indoles and sodium sulfinates is disclosed. Various substituted 2-arylsulfonyl indoles were obtained in one pot in the absence of metal catalyst at room temperature under air.