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

Mejuto, Carmen ; García-Eleno, Marco A. ; Guisado-Barrios, Gregorio ; Spasyuk, Denis ; Gusev, Dmitri ; Peris, Eduardo

Resumen: 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.

Idioma: Inglés

DOI: 10.1039/c5qo00137d

Año: 2015

Publicado en: Organic Chemistry Frontiers 2, 8 (2015), 936 - 941
ISSN: 2052-4129

Factor impacto JCR: 4.693 (2015)

Categ. JCR: CHEMISTRY, ORGANIC rank: 8 / 59 = 0.136 (2015) - Q1 - T1

Factor impacto SCIMAGO: 2.31 - Organic Chemistry (Q1)

Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2014-51999-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FPDI-2013-16525

Tipo y forma: Article (PostPrint)