ortho-Nitro-substituted diaryliodonium salts enabled regioselective cyclization of arylcarboxylic acids toward 3,4-naphthocoumarins

Abstract

We herein report an efficient regioselective cascade of arylation and cyclization of arylcarboxylic acids via Pd(II)-activation of both C–I and vicinal C–NO₂ bonds of ortho-nitro-substituted diaryliodonium salts.