Visible-Light-Induced Tandem Reaction of Allenes with Selenesulfonates Leading to ( E )-2,3-Disulfonylpropene Derivatives.

A visible-light-induced tandem reaction of allenes with selenesulfonates was developed, providing ( E )-2,3-disulfonylpropene derivatives in moderate to good yields. This reaction was featured with simple operation, good regioselectivity and stereoselectivity, and wide functional group tolerance. Photoinduced radical additions via energy transfer were proposed.