title: Selective transfer hydrogenation and hydrogenation of ketones using a defined monofunctional (P^N(Bn)^N(Bn)^P)-Ru(II) complex.
abstract: A defined (P^N^N^P)-Ru complex possessing tertiary amines within the ligand backbone proved to be highly active both in transfer hydrogenations and hydrogenations of a variety of ketones. As compared to the existing catalytic systems, no bifunctional activation of H2 or of the substrate by the metal center and a secondary amine within the ligand backbone is required to obtain high activities at catalyst loadings of down to 10 ppm.
authors.affiliation: Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart (Germany), Fax: (+49) 711-68564285.
authors.forename: Shih-Fan
authors.initials: SF
authors.lastname: Hsu
authors.forename: Bernd
authors.initials: B
authors.lastname: Plietker
keywords: catalysis; hydrogenation; ligand; ruthenium; transfer hydrogenation