Photoinduced synthesis of allylic sulfones using potassium metabisulfite as the source of sulfur dioxide

Abstract

Synthesis of allylic sulfones through a photoinduced three-component reaction of aryl/alkyl halides, potassium metabisulfite, and allylic bromides under ultraviolet irradiation at room temperature is developed. Diverse allylic sulfones are generated in moderate to good yields.