Solvent-promoted photochemical carbonylation of benzylic C–H bonds under iron catalysis

This paper describes the iron-catalyzed photochemical carbonylation of benzylic C–H bonds resulting in the synthesis of various aryl ketones. Using 5 W blue LED irradiation, the reactions proceed smoothly in the presence of 2 mol% of FeBr 3 in MeOH at 35 °C.