Transition-metal free direct C–H functionalization of quinoxalin-2(1<i>H</i>)-ones with oxamic acids leading to 3-carbamoyl quinoxalin-2(1<i>H</i>)-ones

Abstract

A practical transition-metal free decarboxylative coupling reaction of oxamic acids with quinoxalin-2(1<italic>H</italic>)-ones has been developed under mild conditions.