52204-64-5Relevant articles and documents
NHC-stabilized ruthenium nanoparticles as new catalysts for the hydrogenation of aromatics
Gonzalez-Galvez, David,Lara, Patricia,Rivada-Wheelaghan, Orestes,Conejero, Salvador,Chaudret, Bruno,Philippot, Karine,Van Leeuwen, Piet W.N.M.
, p. 99 - 105 (2013/04/10)
The application of ruthenium nanoparticles (RuNPs) stabilized by the N-heterocyclic carbenes (NHC) N,N′-di(tert-butyl)imidazol-2-ylidene (ItBu) and 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene IPr as catalysts in the hydrogenation of several substrates is reported under various reaction conditions (solvent, substrate concentration, substrate/metal ratio, temperature). The RuNHC nanoparticles are active catalysts in the hydrogenation of aromatics and show an interesting ligand effect, RuIPr NPs being generally more active than RuItBu. The Royal Society of Chemistry 2013.
Ligand effect in the Rh-NP catalysed partial hydrogenation of substituted arenes
Castelbou, Jessica Llop,Gual, Aitor,Mercade, Elisabet,Claver, Carmen,Godard, Cyril
, p. 2828 - 2833 (2013/09/24)
The Rh nanoparticles Rh1-Rh4 stabilised by the mono- and bidentate phosphine and phosphite ligands I-IV were synthesised, characterised and applied as catalysts in the partial hydrogenation of substituted arenes. In the case of disubstituted arenes, selectivities for the corresponding cyclohexene derivatives of up to 39% were achieved at ca. 40% conversion. The effect of parameters such as temperature and pressure was also examined. In the hydrogenation of styrene, very high selectivities for ethylbenzene were achieved with TOF values up to ca. 23500 h-1. All these results show that the catalytic performance of small Rh-NPs can be modulated by the appropriate choice of stabilising agents.
Diphosphite ligands derived from carbohydrates as stabilizers for ruthenium nanoparticles: Promising catalytic systems in arene hydrogenation
Gual, Aitor,Axet, M. Rosa,Philippot, Karine,Chaudret, Bruno,Denicourt-Nowicki, Audrey,Roucoux, Alain,Castillon, Sergio,Claver, Carmen
experimental part, p. 2759 - 2761 (2009/02/05)
Ruthenium nanoparticles (RuNPs) were prepared through the hydrogenation of [Ru(COD)(COT)] (COD = 1,5-cyclooctadiene, COT = 1,3,5-cyclooctatriene) in the presence of diphosphites derived from carbohydrates as stabilizing agents, and interestingly, structur