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Issue 20, 2013
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Ruthenium-based complexes containing a benzimidazolium tag covalently connected to N-heterocyclic carbene ligands: environmentally friendly catalysts for olefin metathesis transformations

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Abstract

Two ruthenium-based pre-catalysts containing an ionic tag covalently connected to a N-heterocyclic carbene (NHC) ligand are reported. These novel complexes, bearing a polar benzimidazolium group, are air-stable and can be easily prepared from commercially available reagents. The quaternary benzimidazolium tag allows the efficient separation of ruthenium waste from the metathesis product after reaction. Application in several olefin metathesis transformations leads to desired products of high purity, which exhibit ruthenium contamination levels as low as 1 ppm after simple filtration through a pad of silica gel.

Graphical abstract: Ruthenium-based complexes containing a benzimidazolium tag covalently connected to N-heterocyclic carbene ligands: environmentally friendly catalysts for olefin metathesis transformations

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Publication details

The article was received on 28 Nov 2012, accepted on 19 Dec 2012 and first published on 19 Dec 2012


Article type: Paper
DOI: 10.1039/C2DT32856A
Citation: Dalton Trans., 2013,42, 7354-7358
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    Ruthenium-based complexes containing a benzimidazolium tag covalently connected to N-heterocyclic carbene ligands: environmentally friendly catalysts for olefin metathesis transformations

    M. Klučiar, K. Grela and M. Mauduit, Dalton Trans., 2013, 42, 7354
    DOI: 10.1039/C2DT32856A

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