title: Reaction of 2a,8b-Dihydrobenzo[b]cyclobute[d]pyran-3-ones with Dimethylsulfoxonium Methylide.
abstract: Using dimethylsulfoxonium methylide as the methylene transfer reagent, 2a,8b-dihydrobenzo[b]cyclobute[d]pyran-3-ones were converted into 2,2'-biphenol derivatives as major products and dihydrodibenzofurans as minor products. The reaction mechanism was extrapolated from a deuteration experiment with CD2=S(O)(CD3)2.
authors.affiliation: Kyoto Pharmaceutical University.
authors.forename: Toru
authors.initials: T
authors.lastname: Tanaka
authors.forename: Masaki
authors.initials: M
authors.lastname: Nagahama
authors.forename: Navnath Dnyanoba
authors.initials: ND
authors.lastname: Yadav
authors.forename: Hiroki
authors.initials: H
authors.lastname: Iwasaki
authors.forename: Minoru
authors.initials: M
authors.lastname: Ozeki
authors.forename: Naoto
authors.initials: N
authors.lastname: Kojima
authors.forename: Masayuki
authors.initials: M
authors.lastname: Yamashita
mesh_terms: D003503:Cyclobutanes / Q000737:chemistry*; D000072318:Dibenzofurans / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D010636:Phenols / Q000138:chemical synthesis* / Q000737:chemistry; D013452:Sulfonium Compounds / Q000737:chemistry*
chemical_list: D003503:Cyclobutanes; D000072318:Dibenzofurans; D010636:Phenols; D013452:Sulfonium Compounds; C554865:dimethylsulfoxonium methylide