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Molecules 2010, 15(5), 3311-3318; doi:10.3390/molecules15053311
Article

A Recyclable Nanoparticle-Supported Rhodium Catalyst for Hydrogenation Reactions

,
, *  and
Dipartimento di Ingegneria delle Acque e di Chimica del Politecnico di Bari, via E.Orabona, 4 I-70125 Bari, Italy
* Author to whom correspondence should be addressed.
Received: 31 March 2010 / Revised: 27 April 2010 / Accepted: 29 April 2010 / Published: 5 May 2010
(This article belongs to the Special Issue Nano-catalysts and Nano-technologies for Green Organic Synthesis)
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Abstract

Catalytic hydrogenation under mild conditions of olefins, unsaturated aldeydes and ketones, nitriles and nitroarenes was investigated, using a supported rhodium complex obtained by copolymerization of Rh(cod)(aaema) [cod: 1,5-cyclooctadiene, aaema–: deprotonated form of 2-(acetoacetoxy)ethyl methacrylate] with acrylamides. In particular, the hydrogenation reaction of halonitroarenes was carried out under 20 bar hydrogen pressure with ethanol as solvent at room temperature, in order to minimize hydro-dehalogenation. The yields in haloanilines ranged from 85% (bromoaniline) to 98% (chloroaniline).
Keywords: hydrogenation; supported rhodium complex; nitroaromatics; halonitroanilines hydrogenation; supported rhodium complex; nitroaromatics; halonitroanilines
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Dell’Anna, M.M.; Gallo, V.; Mastrorilli, P.; Romanazzi, G. A Recyclable Nanoparticle-Supported Rhodium Catalyst for Hydrogenation Reactions. Molecules 2010, 15, 3311-3318.

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