Korotvička, A.; Frejka, D.; Hampejsová, Z.; Císařová, I.; Kotora, M. Synthesis of Phenanthridines via a Rhodium-Catalyzed C–C Bond Cleavage Reaction of Biphenylene with Nitriles. Synthesis 2016, 48 (07), 987-996 DOI: 10.1055/s-0035-1561343.