Highly efficient abnormal NHC ruthenium catalyst for Oppenauer-type oxidation and transfer hydrogenation reactions

Pardatscher, Lorenz, Hofmann, Benjamin J. ORCID: https://orcid.org/0000-0001-6408-3472, Fischer, Pauline J., Hölzl, Sebastian M., Reich, Robert M., Kühn, Fritz E. and Baratta, Walter (2019) Highly efficient abnormal NHC ruthenium catalyst for Oppenauer-type oxidation and transfer hydrogenation reactions. ACS Catalysis, 9 (12). pp. 11302-11306. ISSN 2155-5435

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Abstract

The ruthenium complex [Ru(OAc)(a-PC)2]Br (3) containing two abnormal NHC ligands is obtained by reaction of Ru(OAc)2(PPh3)2 (1) with 1-(2-diphenylphosphinoethyl)-3-mesitylimidazolium bromide in the presence of NaOAc. Complex 3 catalyzes the Oppenauer-type oxidation of a number of alcohols at unrivalled reaction rates reaching TOFs up to 550 000 h-1, at low catalyst loadings (S/C higher than 10 000) and using acetone in stoichiometric amounts. Complex 3 is also highly active in the reverse transfer hydrogenation of several ketones with 2-propanol, displaying TOFs up to 600 000 h-1.

Item Type:	Article
Uncontrolled Keywords:	alcohols,carbonyl compounds,n-heterocyclic carbenes,oppenauer-type oxidation,ruthenium,smart ligands,transfer hydrogenation,catalysis,chemistry(all) ,/dk/atira/pure/subjectarea/asjc/1500/1503
Faculty \ School:	Faculty of Science > School of Chemistry (former - to 2024)
Related URLs:	http://www.scopus.com/inward/record.url?...
Depositing User:	LivePure Connector
Date Deposited:	17 Jul 2021 00:12
Last Modified:	25 Sep 2024 15:42
URI:	https://ueaeprints.uea.ac.uk/id/eprint/80628
DOI:	10.1021/acscatal.9b03677

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