Autor según el artículo: Blondeau, P.; Martinez-Espinar, F. ; Nolis, P. ; Chaudret, B. ; Claver, C. ; Castillón, S. ; Godard, C.
Departamento: Química Física i Inorgànica Química Analítica i Química Orgànica
Autor/es de la URV: BLONDEAU , PASCAL JEAN CLAUDE LEON; Martinez-Espinar, F. ; Nolis, P. ; Chaudret, B. ; CLAVER CABRERO, MARIA DEL CARMEN OROSIA; CASTILLÓN MIRANDA, SERGIO; GODARD , CYRIL
Palabras clave: hydrogenation NHCs rhodium nanoparticles
Resumen: New Rh-NPs stabilised by N-Heterocyclic Carbenes (NHC) were synthesized by decomposition of [Rh(g3-C3H5)3] under H2 atmosphere and fully characterized. Surface studies by FT-IR and NMR spectroscopy employing isotopically labelled ligands were also performed. The Rh0.2 NPs are active catalysts in the reduction of various aromatic substrates. In the reduction of phenol, high selectivities to cyclohexanone or cyclohexanol were obtained depending on the reaction conditions. However, this catalytic system exhibited much lower activity in the hydrogenation of substituted phenols. Pyridine was easily hydrogenated
under mild conditions and interestingly, the hydrogenation of 4-methyl and 4- trifluoromethylpyridine resulted slower than that of 2-methylpyridine. The hydrogenation of 1-
(pyridin-2-yl)propan-2-one provided the b-enaminone 13a in high yield as a consequence of the partial reduction of the pyridine ring followed by isomerization. Quinoline could be either partially hydrogenated
to 1,2,3,4-tetrahydroquinoline or fully reduced to decahydroquinoline by adjusting the reaction conditions.
Grupo de investigación: Síntesis Orgànica Estereoselectiva Organometàl.lics i Catàlisi Homogènia Grup de Quimiometria, Qualimetria i Nanosensors
Áreas temáticas: Chemistry Química Química
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 0021-9517
Identificador del autor: 0000-0003-1331-5055; ; ; ; 0000-0002-2518-7401; 0000-0002-0690-7549; 0000-0001-5762-4904
Fecha de alta del registro: 2018-02-21
Página final: 127
Volumen de revista: 354
Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
Enlace a la fuente original: https://www.sciencedirect.com/science/article/pii/S0021951717302956
Programa de financiación: altres; Grupos consolidados; 2014SGR670 plan; Retos; CTQ2016-75016-R, AEI/FEDER, UE altres; Grant Marti Franquès- URV ; 2013PMF-PIPF-90
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
DOI del artículo: 10.1016/j.jcat.2017.08.010
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2017
Página inicial: 113
Tipo de publicación: Article Artículo Article