Organophotocatalytic Arene Functionalization: C–C and C–B Bond Formation

Organophotocatalytic C–C and C–B bond formation reactions of aryl halides have been developed in the presence of an organophotosensitizer, 3,7-di([1,1′-biphenyl]-4-yl)-10-(4-(trifluoromethyl)phenyl)-10H-phenoxazine that has highly negative reduction potential at its photoexcited state. The developed reaction conditions are mild and allow the intermolecular C–C bond formation of the generated aryl radical with electron-rich (hetero)arenes and C–B bond formation with bis(pinacolato)diboron.