Efficient Desulfonylation of Alkenyl Sulfones Enabled by Cu‐Catalysis

Abstract

This study reported an efficient and operationally simple desulfonylation method. A one‐pot protoboration‐desulfonylation of alkenyl sulfones with various sulfone heads under copper catalysis using diboron, and an alkoxide base in DMF afforded high yields of the corresponding alkenes. This reaction operates well in the presence of water and air for unsaturated sulfones with an aryl or alkyl substituent and for widely used phenyl and other sulfonyl families. Use of ligand is not necessary and byproducts from the reaction are relatively benign.