ChemInform Abstract: Kinetic Control of Rh(III)-Catalyzed Annulation of C—H Bonds with Quinones: Chemoselective Synthesis of Hydrophenanthridinones and Phenanthridinones.
The annulation of amides (I) with quinones provides hydrophenanthridinones (IV), which can be aromatized upon treatment with Et3N/Tf2O to give phenanthridinones (III).