期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 691, 期 22, 页码 4652-4659出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2006.07.013
关键词
ruthenium; homogeneous catalysis; transfer hydrogenation; N-heterocyclic carbenes; ketones
Novel ruthenium carbene complexes have been in situ generated and tested for the transfer hydrogenation of ketones. Applying Ru(cod)(methylallyl)2 in the presence of imidazolium salts in 2-propanol and sodium-2-propanolate as base, turnover frequencies up to 346 h(-1) have been obtained for reduction of acetophenone. A comparative study involving ruthenium carbene and ruthenium phosphine complexes demonstrated the higher activity of ruthenium carbene complexes. (c) 2006 Elsevier B.V. All rights reserved.
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