Iridium NHC based catalysts for transfer hydrogenation processes using glycerol as solvent and hydrogen donor
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Altres documents de l'autoria: Azua Barrios, Arturo; Peris, Eduardo; Mata Martínez, Jose A
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Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7053
comunitat-uji-handle3:10234/8639
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http://dx.doi.org/10.1021/om200796c |
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Títol
Iridium NHC based catalysts for transfer hydrogenation processes using glycerol as solvent and hydrogen donorData de publicació
2011-10Editor
American Chemical SocietyISSN
0276-7333Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://pubs.acs.org/doi/full/10.1021/om200796cParaules clau / Matèries
Resum
A series of iridium and ruthenium N-heterocyclic carbene based catalysts of general formula [IrI2(AcO)(bis-NHC)] or [Ru(η6-arene)(NHC)CO3] have been tested in the reduction of several organic carbonyl compounds using ... [+]
A series of iridium and ruthenium N-heterocyclic carbene based catalysts of general formula [IrI2(AcO)(bis-NHC)] or [Ru(η6-arene)(NHC)CO3] have been tested in the reduction of several organic carbonyl compounds using glycerol as solvent and hydrogen donor, by the transfer hydrogenation methodology. The Ir(III) complexes with a chelating bis-NHC ligand and sulfonate groups were the most efficient, due to their solubility in the reaction media and to the strong electron-donor properties of the bis-carbene ligands. The same two catalysts were moderately active in the reduction of olefins and alkynes and, more remarkably, show excellent chemoselectivity in the reduction of the alkenic double bond of α,β-unsaturated ketones, a valuable process for which glycerol had never been used before. [-]
Publicat a
Organometallics (Oct. 2011), vol. 30, no. 20, 5532–5536Drets d'accés
© 2011 American Chemical Society
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