title: TiO2-Supported Re as a General and Chemoselective Heterogeneous Catalyst for Hydrogenation of Carboxylic Acids to Alcohols.
abstract: TiO2-supported Re, Re/TiO2, was found to promote selective hydrogenation of carboxylic acids having aromatic and aliphatic moieties to the corresponding alcohols. Re/TiO2showed superior results compared to other transition-metal-loaded TiO2and supported Re catalysts for selective hydrogenation of 3-phenylpropionic acid. 3-phenylpropanol was produced in 97 % yield under mild conditions (5 MPa H2at 140 °C). Contrary to typical heterogeneous catalysts, Re/TiO2does not lead to the formation of dearomatized byproducts. The catalyst is recyclable and shows a wide substrate scope in the synthesis of alcohols (22 examples; up to 97 % isolated yield).
authors.affiliation: Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, 001-0021, Japan.|Elements Strategy Initiative for Catalysis and Batteries, Kyoto University, Katsura, Kyoto, 615-8520, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Toyao
authors.affiliation: Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, 001-0021, Japan.
authors.forename: S M A Hakim
authors.initials: SM
authors.lastname: Siddiki
authors.affiliation: Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, 001-0021, Japan.
authors.forename: Abeda S
authors.initials: AS
authors.lastname: Touchy
authors.affiliation: Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, 001-0021, Japan.
authors.forename: Wataru
authors.initials: W
authors.lastname: Onodera
authors.affiliation: Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, 001-0021, Japan.
authors.forename: Kenichi
authors.initials: K
authors.lastname: Kon
authors.affiliation: Institute for Materials Chemistry and Engineering and International Research Center for Molecular Systems, Kyushu University, Fukuoka, 819-0395, Japan.
authors.forename: Yoshitsugu
authors.initials: Y
authors.lastname: Morita
authors.affiliation: Elements Strategy Initiative for Catalysis and Batteries, Kyoto University, Katsura, Kyoto, 615-8520, Japan.|Institute for Materials Chemistry and Engineering and International Research Center for Molecular Systems, Kyushu University, Fukuoka, 819-0395, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Kamachi
authors.affiliation: Elements Strategy Initiative for Catalysis and Batteries, Kyoto University, Katsura, Kyoto, 615-8520, Japan.|Institute for Materials Chemistry and Engineering and International Research Center for Molecular Systems, Kyushu University, Fukuoka, 819-0395, Japan.
authors.forename: Kazunari
authors.initials: K
authors.lastname: Yoshizawa
authors.affiliation: Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, 001-0021, Japan.|Elements Strategy Initiative for Catalysis and Batteries, Kyoto University, Katsura, Kyoto, 615-8520, Japan.
authors.forename: Ken-Ichi
authors.initials: KI
authors.lastname: Shimizu
keywords: alcohols; carboxylic acids; heterogeneous catalysis; hydrogenation; rhenium