Metal-free four-component coupling of cyclic diarylchloronium salts, tetrahydrothiophene, amines and carbon dioxide

Abstract

A four-component coupling reaction of cyclic diarylchloronium salts, tetrahydrothiophene, amines and CO₂ has been reported for the first time under transition metal-free conditions, giving rise to a range of structurally diverse and useful sulfur-containing carbamates in high yields with excellent regioselectivities.