title: Synthesis of alkyl-substituted benzo[c]phenanthrenes and chrysenes by photocyclization.
mesh_terms: D000478:Alkylation; D002911:Chrysenes / Q000138:chemical synthesis*; D003500:Cyclization; D010616:Phenanthrenes / Q000138:chemical synthesis*; D010777:Photochemistry
chemical_list: D002911:Chrysenes; D010616:Phenanthrenes