AIBN‐Initiated Denitrative Cross‐Coupling Reactions of β‐Nitrostyrenes with Sulfonyl Hydrazides/Disulfides: A Metal‐free Approach towards Vinyl Sulfones

A practical approach involving denitrative coupling of β‐nitrostyrenes and sulfonyl hydrazides/disulfides by AIBN (azobisisobutyronitrile) has been developed to accomplish the synthesis of vinyl sulfones. The method employs easily accessible starting materials, and is endowed with a broad substrate scope and functional group tolerance.