title: Direct Hydrogenation of Biobased Carboxylic Acids Mediated by a Nitrogen-centered Tridentate Phosphine Ligand.
abstract: A novel nitrogen-centered tridentate ligand was identified from a series of multidentate ligands and applied for the direct hydrogenation of 9 biogenic acids into alcohols, lactones and esters with high yields. Comparison of substrates and ruthenium precursors suggested that the Ru(II) hydride cationic species was more active to transform acids than the corresponding lactone or esters.
authors.affiliation: Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany. deng.li@itmc.rwth-aachen.de.
authors.forename: Li
authors.initials: L
authors.lastname: Deng
authors.affiliation: Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany.
authors.forename: Bin
authors.initials: B
authors.lastname: Kang
authors.affiliation: Institute of Inorganic Chemistry, RWTH Aachen University, Aachen, Germany.
authors.forename: Ulli
authors.initials: U
authors.lastname: Englert
authors.affiliation: Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Klankermayer
authors.affiliation: Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany. palkovits@itmc.rwth-aachen.de.
authors.forename: Regina
authors.initials: R
authors.lastname: Palkovits
mesh_terms: D000438:Alcohols / Q000737:chemistry; D002264:Carboxylic Acids / Q000737:chemistry*; D002384:Catalysis; D006865:Hydrogenation; D007783:Lactones / Q000737:chemistry; D008024:Ligands; D009584:Nitrogen / Q000737:chemistry*; D010720:Phosphines / Q000737:chemistry*
chemical_list: D000438:Alcohols; D002264:Carboxylic Acids; D007783:Lactones; D008024:Ligands; D010720:Phosphines; C044646:phosphine; D009584:Nitrogen
keywords: carboxylic acids; homogeneous catalysis; hydrogenation; ruthenium; tridentate ligands