title: Amide-Substituted Titanocenes in Hydrogen-Atom Transfer Catalysis.
abstract: Two new catalytic systems for hydrogen-atom transfer (HAT) catalysis involving the N-H bonds of titanocene(III) complexes with pendant amide ligands are reported. In a monometallic system, a bifunctional catalyst for radical generation and reduction through HAT catalysis depending on the coordination of the amide ligand is employed. The pendant amide ligand is used to activate Crabtree's catalyst to yield an efficient bimetallic system for radical generation and HAT catalysis.
authors.affiliation: Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany.
authors.forename: Yong-Qiang
authors.initials: YQ
authors.lastname: Zhang
authors.affiliation: Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany.
authors.forename: Verena
authors.initials: V
authors.lastname: Jakoby
authors.affiliation: Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany.
authors.forename: Katharina
authors.initials: K
authors.lastname: Stainer
authors.affiliation: Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany.
authors.forename: Alexander
authors.initials: A
authors.lastname: Schmer
authors.affiliation: Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany.
authors.forename: Sven
authors.initials: S
authors.lastname: Klare
authors.affiliation: Mulliken Center for Theoretical Chemistry, Institut für Physikalische Chemie und Theoretische Chemie, Universität Bonn, Beringstraße 4, 53115, Bonn, Germany.
authors.forename: Mirko
authors.initials: M
authors.lastname: Bauer
authors.affiliation: Mulliken Center for Theoretical Chemistry, Institut für Physikalische Chemie und Theoretische Chemie, Universität Bonn, Beringstraße 4, 53115, Bonn, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Grimme
authors.affiliation: Department of Organic Chemistry, Faculty of Sciences, Universität Granada, 18071, Granada, Spain.
authors.forename: Juan Manuel
authors.initials: JM
authors.lastname: Cuerva
authors.affiliation: Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany. andreas.gansaeuer@uni-bonn.de.
authors.forename: Andreas
authors.initials: A
authors.lastname: Gansäuer
keywords: enantioselectivity; homogeneous catalysis; hydrogen-atom transfer; radicals; titanium