Acceptorless dehydrogenative condensation of o-aminobenzamides with aldehydes to quinazolinones in water catalyzed by a water-soluble iridium complex [Cp*Ir(H2O)3][OTf]2

Abstract

A general and efficient method for the synthesis of quinazolinones via acceptorless dehydrogenative condensation of o-aminobenzamides with aldehydes in water has been accomplished. In the presence of [Cp*Ir(H₂O)₃][OTf]₂, a variety of desirable products were obtained in high yields with high atom economy under environmentally benign conditions. Notably, this research will facilitate the progress of acceptorless dehydrogenative reactions in water catalyzed by water-soluble organometallic complexes.