title: A novel manganese(III) acetate mediated reaction between 2-benzoyl-1,4-naphthoquinones and 1,3-dicarbonyl compounds.
abstract: A manganese(III)-mediated reaction between 2-benzoyl-1,4-naphthoquinones and 1,3-dicarbonyl compounds is described. This reaction provides an effective method for the synthesis of naphtho[2,3-c]furan-4,9-diones and naphthacene-5,12-diones, and it shows fair to high chemoselectivity depending on the electronic effect of the benzoyl group substituent on the reactants. With ethyl benzoylacetate and 1,3-diketones, the novel naphtho[2,3-c]furan-4,9-diones were produced effectively with high selectivity.
authors.affiliation: Department of Chemistry, National Cheng Kung University, Tainan, Taiwan, 70101, Republic of China.
authors.forename: Chien-Yu
authors.initials: CY
authors.lastname: Lin
authors.forename: Yu-Chih
authors.initials: YC
authors.lastname: Cheng
authors.forename: An-I
authors.initials: AI
authors.lastname: Tsai
authors.forename: Che-Ping
authors.initials: CP
authors.lastname: Chuang
mesh_terms: D004952:Esters; D007659:Ketones / Q000737:chemistry*; D007700:Kinetics; D008293:Malates; D008345:Manganese; D008958:Models, Molecular; D015394:Molecular Structure; D009285:Naphthoquinones / Q000737:chemistry*
chemical_list: D004952:Esters; D007659:Ketones; D008293:Malates; D009285:Naphthoquinones; D008345:Manganese; C030298:malic acid