Copper‐Catalyzed Intramolecular Oxidative CH Functionalization and CN Formation of 2‐Aminobenzophenones: Unusual Pseudo‐1,2‐Shift of the Substituent on the Aryl Ring

A good move: A copper-catalyzed intramolecular oxidative CH functionalization of 2-aminobenzophenone affords two regioisomeric acridones (see scheme). The reaction involves an unusual pseudo-1,2-migration of R2 group(s) on the arene ring (bpy=2,2′-bipyridine, DMAc=dimethylacetimide).