Facile Synthesis of Isoindolinones via Rh(III)-Catalyzed One-Pot Reaction of Benzamides, Ketones, and Hydrazines

A Rh­(III)-catalyzed one-pot reaction of benzamides, ketones, and hydrazines for facile access to isoindolinones is reported. In this method, various ketones are transformed into donor–donor diazo compounds, which sequentially engage in insertion with benzamides under Rh­(III) catalysis to generate N-substituted quaternary isoindolinones.