Regioselective, Copper(I)-Catalyzed, Tandem Sulfonylation-Cyclization of 1,5-Dienes with Sulfonyl Chlorides

A copper(I)-catalyzed sulfonylation-cyclization of 1,5-dienes with sulfonyl chlorides was developed. This transformation demonstrated a broad substrate scope and presented excellent regioselectivity after radical addition and subsequent deprotonation to form the derivatized 1,5-dihydro-2H-pyrrol-2-one scaffold in one pot.