Visible-light-promoted acridine red catalyzed aerobic oxidative decarboxylative acylation of α-oxo-carboxylic acids with quinoxalin-2(1H)-ones

A mild and facile visible-light-mediated strategy has been proposed for the synthesis of 3-acyl quinoxalin-2(1H)-ones through acridine red catalyzed aerobic oxidative decarboxylative acylation of alpha-oxo-carboxylic acids with quinoxalin-2(1H)-ones at room temperature in air. Various 3-acyl quinoxalin-2(1H)-ones could be efficiently obtained in good yields with excellent functional group compatibility.