title: Ruthenium-catalyzed intermolecular hydroacylation of internal alkynes: the use of ceria-supported catalyst facilitates the catalyst recycling.
abstract: Versatile and practical: Intermolecular hydroacylation of internal alkynes takes place in the presence of Ru catalysts together with HCO(2)Na and Xantphos to give the corresponding conjugated enones. Aromatic aldehydes with or without coordinating groups could be used in the present catalytic system. The solid Ru/CeO(2) catalysts can be recycled for several times without significant decreases in yield (see scheme).
authors.affiliation: Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Miura
authors.forename: Kenji
authors.initials: K
authors.lastname: Wada
authors.forename: Saburo
authors.initials: S
authors.lastname: Hosokawa
authors.forename: Masashi
authors.initials: M
authors.lastname: Inoue
mesh_terms: D000215:Acylation; D000447:Aldehydes / Q000737:chemistry; D000480:Alkynes / Q000737:chemistry*; D002384:Catalysis; D007659:Ketones / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D012428:Ruthenium / Q000737:chemistry*
chemical_list: D000447:Aldehydes; D000480:Alkynes; D007659:Ketones; D012428:Ruthenium