title: A stereoselective total synthesis of estrone by an intramolecular cycloaddition reaction of olefinic o-quinodimethane.
mesh_terms: D003512:Cyclohexanones; D004970:Estrone / Q000138:chemical synthesis*; D007202:Indicators and Reagents; D008722:Methods
chemical_list: D003512:Cyclohexanones; D007202:Indicators and Reagents; D004970:Estrone