title: A stereospecific total synthesis of estrone via a cationic olefinic cyclization.
mesh_terms: D000475:Alkenes; D003500:Cyclization; D004970:Estrone / Q000138:chemical synthesis*; D009682:Magnetic Resonance Spectroscopy; D008722:Methods; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism
chemical_list: D000475:Alkenes; D004970:Estrone