Stable and Inert Cobalt Catalysts for Highly Selective and Practical Hydrogenation of C≡N and C═O Bonds.
Novel heterogeneous cobalt-based catalysts have been prepared by pyrolysis of cobalt complexes with nitrogen ligands on different inorganic supports. The activity and selectivity of the resulting materials in the hydrogenation of nitriles and carbonyl compounds is strongly influenced by the modification of the support and the nitrogen-containing ligand. The optimal catalyst system ([Co(OAc)2/Phen@α-Al2O3]-800 = Cat. E) allows for efficient reduction of both aromatic and aliphatic nitriles including industrially relevant dinitriles to primary amines under mild conditions. The generality and practicability of this system is further demonstrated in the hydrogenation of diverse aliphatic, aromatic, and heterocyclic ketones as well as aldehydes, which are readily reduced to the corresponding alcohols.
Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a, Rostock 18059, Germany.
Feng
F
Chen
Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a, Rostock 18059, Germany.
Christoph
C
Topf
Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a, Rostock 18059, Germany.
Jörg
J
Radnik
Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a, Rostock 18059, Germany.
Carsten
C
Kreyenschulte
Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a, Rostock 18059, Germany.
Henrik
H
Lund
Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a, Rostock 18059, Germany.
Matthias
M
Schneider
Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a, Rostock 18059, Germany.
Annette-Enrica
AE
Surkus
Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a, Rostock 18059, Germany.
Lin
L
He
Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a, Rostock 18059, Germany.
Kathrin
K
Junge
Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a, Rostock 18059, Germany.
Matthias
M
Beller