title: Cycloadditions in syntheses. XXXVI. 6-Hydroxy-1,2-dihydrocyclobuta [a] naphthalene-2-carboxylic acid: a new synthon for A,B-ring aromatized steroids.
abstract: A synthetic method of 6-hydroxy-1,2-dihydrocyclobuta[a]naphthalene-2-carboxylic acid as well as a new methodology for the synthesis of A,B-ring aromatized steroids from its 6-deoxy derivative are elaborated.
authors.affiliation: Pharmaceutical Institute, Tohoku University, Aobayama, Sendai, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Sato
authors.forename: K
authors.initials: K
authors.lastname: Kawakami
authors.forename: T
authors.initials: T
authors.lastname: Suzuki
authors.forename: H
authors.initials: H
authors.lastname: Morisawa
authors.forename: S
authors.initials: S
authors.lastname: Nishimura
authors.forename: C
authors.initials: C
authors.lastname: Kaneko
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003503:Cyclobutanes / Q000138:chemical synthesis*; D015394:Molecular Structure; D009281:Naphthalenes / Q000138:chemical synthesis*
chemical_list: D003503:Cyclobutanes; D009281:Naphthalenes; C061693:6-hydroxy-1,2-dihydrocyclobuta(a)naphthalene-2-carboxylic acid