Electro-oxidative C–H alkylation of quinoxalin-2(1H)-ones with organoboron compounds

Abstract

Radical cleavage of C–B bonds to accomplish C–H functionalization is synthetically appealing but practically challenging. We report herein a mild electro-oxidative method for efficient C–H alkylation of quinoxalin-2(1H)-ones by means of radical addition reactions of alkyl boronic acids and esters and alkyl trifluoroborates to afford C–C coupled products.