A Recyclable Nanoparticle-Supported Rhodium Catalyst for Hydrogenation ReactionsReportar como inadecuado




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Dipartimento di Ingegneria delle Acque e di Chimica del Politecnico di Bari, via E.Orabona, 4 I-70125 Bari, Italy





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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 Rhcodaaema cod: 1,5-cyclooctadiene, aaema–: deprotonated form of 2-acetoacetoxyethyl 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





Autor: Maria Michela Dell’Anna, Vito Gallo, Piero Mastrorilli * and Giuseppe Romanazzi

Fuente: http://mdpi.com/



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