title: A novel construction of dibenzofuran-1,4-diones by oxidative cyclization of quinone-arenols.
abstract: A novel oxidative cyclization of quinone-arenols 5 leading to products 6 with a dibenzofuran-1,4-dione structure, which forms the core of several natural products, has been developed and applied to the synthesis of violet-quinone (4).
authors.affiliation: Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida, Tokyo 194-8543, Japan.
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Takeya
authors.forename: Hiromu
authors.initials: H
authors.lastname: Kondo
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Otsuka
authors.forename: Kazuho
authors.initials: K
authors.lastname: Tomita
authors.forename: Iwao
authors.initials: I
authors.lastname: Okamoto
authors.forename: Osamu
authors.initials: O
authors.lastname: Tamura
mesh_terms: D001572:Benzofurans / Q000737:chemistry*; D003500:Cyclization; D015394:Molecular Structure; D010084:Oxidation-Reduction; D011809:Quinones / Q000737:chemistry*
chemical_list: D001572:Benzofurans; D011809:Quinones; C023614:dibenzofuran