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Issue 8, 2015
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Ruthenium complexes with an N-heterocyclic carbene NNC-pincer ligand: preparation and catalytic properties

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Abstract

1-Methyl-3-(2-((pyridin-2-ylmethylene)amino)ethyl)-1H-imidazol-3-ium bromide was prepared and used as an N-heterocyclic carbene NNC-pincer ligand precursor. Depending on the coordination strategy, a monometallic [Ru(NNC)(CO3)(PPh3)] complex, or the [Ru(μ-Cl)(NNC)]2(2Cl) dimer, was obtained. A di-silver complex in which two ligands are monocoordinated to the metal center through the NHC groups was also obtained and characterised. The dimetallic ruthenium complex reacts with alcohols yielding a monohydride species. The preliminary studies on the catalytic activity of the ruthenium dimer indicate that the complex is active in the reduction of ketones and aldehydes under transfer hydrogenation conditions.

Graphical abstract: Ruthenium complexes with an N-heterocyclic carbene NNC-pincer ligand: preparation and catalytic properties

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Publication details

The article was received on 23 Apr 2015, accepted on 29 May 2015 and first published on 01 Jun 2015


Article type: Research Article
DOI: 10.1039/C5QO00137D
Author version available: Download Author version (PDF)
Citation: Org. Chem. Front., 2015,2, 936-941
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    Ruthenium complexes with an N-heterocyclic carbene NNC-pincer ligand: preparation and catalytic properties

    C. Mejuto, M. A. García-Eleno, G. Guisado-Barrios, D. Spasyuk, D. Gusev and E. Peris, Org. Chem. Front., 2015, 2, 936
    DOI: 10.1039/C5QO00137D

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