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).
A recyclable nanoparticle-supported rhodium catalyst for hydrogenation reactions / Dell'Anna, Maria Michela; Gallo, Vito; Mastrorilli, Pietro; Romanazzi, Giuseppe. - In: MOLECULES. - ISSN 1420-3049. - ELETTRONICO. - 15:5(2010), pp. 3311-3318. [10.3390/molecules15053311]
A recyclable nanoparticle-supported rhodium catalyst for hydrogenation reactions
DELL'ANNA, Maria Michela;GALLO, Vito;MASTRORILLI, Pietro;ROMANAZZI, Giuseppe
2010-01-01
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).| File | Dimensione | Formato | |
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