Arene Hydrogenation with a Stabilised Aqueous Rhodium(0) Suspension: A Major Effect of the Surfactant Counter‐Anion
Authors:
- 21 January 2003
- journal article
- research article
- Published by Wiley in Advanced Synthesis & Catalysis
- Vol. 345 (1-2) , 222-229
Abstract
A reduced aqueous colloidal suspension of rhodium shows an efficient activity in the catalytic hydrogenation of various benzene derivatives under biphasic conditions at room temperature and under atmospheric hydrogen pressure. The rhodium nanoparticles in the size range of 2–2.5 nm have been synthesised by reducing RhCl3⋅3 H2O with sodium borohydride and were stabilised by highly water‐soluble N,N‐dimethyl‐N‐cetyl‐N‐(2‐hydroxyethyl)ammonium salts (HEA16X, X=Br, Cl, I, CH3SO3, BF4). The major influence of the counter‐ion of these surfactants on catalytic activity and recycling is described. The best results have been obtained with chloride ammonium salts HEA16Cl.Keywords
This publication has 39 references indexed in Scilit:
- Nanocluster Formation and Stabilization Fundamental Studies. 2. Proton Sponge as an Effective H+Scavenger and Expansion of the Anion Stabilization Ability SeriesLangmuir, 2002
- Colloid-catalysed arene hydrogenation in aqueous/supercritical fluid biphasic mediaChemical Communications, 2000
- Unprecedented efficient hydrogenation of arenes in biphasic liquid–liquid catalysis by re-usable aqueous colloidal suspensions of rhodiumChemical Communications, 1999
- Stereoselective hydrogenation of lignin degradation model compoundsCanadian Journal of Chemistry, 1997
- A perspective on nanocluster catalysis: polyoxoanion and (n-C4H9)4N+ stabilized Ir(0)∼300 nanocluster ‘soluble heterogeneous catalysts’Journal of Molecular Catalysis A: Chemical, 1996
- Colloidal Rhodium: A New Catalytic System for the Reduction of Dibenzo-18-crown-6 EtherJournal of Catalysis, 1994
- Aromatic Hydrogenation Catalysis: A ReviewCatalysis Reviews, 1994
- Supported organoactinide complexes as heterogeneous catalysts. A kinetic and mechanistic study of facile arene hydrogenationJournal of the American Chemical Society, 1992
- Room-temperature catalytic hydrogenation of aromatic hydrocarbons using rhodium complex [(1,5-COD)RhH]4 [COD = 1,5-cyclooctadiene] as a catalyst precursorChemistry of Materials, 1992
- Exceedingly mild, selective and stereospecific phase-transfer-catalyzed hydrogenation of arenesOrganometallics, 1983