title: NNP-Type Pincer Imidazolylphosphine Ruthenium Complexes: Efficient Base-Free Hydrogenation of Aromatic and Aliphatic Nitriles under Mild Conditions.
abstract: A series of seven novel N(Im)N(H)P-type pincer imidazolylphosphine ruthenium complexes has been synthesized and fully characterized. The use of hydrogenation of benzonitrile as a benchmark test identified [RuHCl(CO)(N(Im)N(H) P(tBu))] as the most active catalyst. With its stable Ru-BH4 analogue, in which chloride is replaced by BH4, a broad range of (hetero)aromatic and aliphatic nitriles, including industrially interesting adiponitrile, has been hydrogenated under mild and base-free conditions.
authors.affiliation: Leibniz-Institut für Katalyse e.V., Albert Einstein Str. 29a, 18059, Rostock, Germany.
authors.forename: Rosa
authors.initials: R
authors.lastname: Adam
authors.affiliation: Leibniz-Institut für Katalyse e.V., Albert Einstein Str. 29a, 18059, Rostock, Germany.|Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Tr. La Crucca 3, 07100, Sassari, Italy.
authors.forename: Elisabetta
authors.initials: E
authors.lastname: Alberico
authors.affiliation: Leibniz-Institut für Katalyse e.V., Albert Einstein Str. 29a, 18059, Rostock, Germany.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Baumann
authors.affiliation: Leibniz-Institut für Katalyse e.V., Albert Einstein Str. 29a, 18059, Rostock, Germany.
authors.forename: Hans-Joachim
authors.initials: HJ
authors.lastname: Drexler
authors.affiliation: Leibniz-Institut für Katalyse e.V., Albert Einstein Str. 29a, 18059, Rostock, Germany.
authors.forename: Ralf
authors.initials: R
authors.lastname: Jackstell
authors.affiliation: Leibniz-Institut für Katalyse e.V., Albert Einstein Str. 29a, 18059, Rostock, Germany.
authors.forename: Henrik
authors.initials: H
authors.lastname: Junge
authors.affiliation: Leibniz-Institut für Katalyse e.V., Albert Einstein Str. 29a, 18059, Rostock, Germany. Matthias.Beller@catalysis.de.
authors.forename: Matthias
authors.identifier: http://orcid.org/0000-0001-5709-0965
authors.initials: M
authors.lastname: Beller
keywords: N,P ligands; homogeneous catalysis; hydrogenation; ruthenium; synthesis design