Selective hydrogenation of alfa-beta unsaturated ketones to alfa-beta unsaturated alcohols on gold supported catalysts (Articolo in rivista)

Type
Label
  • Selective hydrogenation of alfa-beta unsaturated ketones to alfa-beta unsaturated alcohols on gold supported catalysts (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Alternative label
  • Milone C., Ingoglia R., Pistone A., Neri G., Frusteri F., and Galvagno S. (2004)
    Selective hydrogenation of alfa-beta unsaturated ketones to alfa-beta unsaturated alcohols on gold supported catalysts
    in Journal of catalysis (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Milone C., Ingoglia R., Pistone A., Neri G., Frusteri F., and Galvagno S. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 222 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Frusteri Francesco (literal)
Titolo
  • Selective hydrogenation of alfa-beta unsaturated ketones to alfa-beta unsaturated alcohols on gold supported catalysts (literal)
Abstract
  • The liquid-phase reduction of ?,?-unsaturated ketones [trans,4-phenyl,3-buten,2-one (benzalacetone C6H5CH=CHCOCH3), 4-methyl,3-penten,2-one (CH3)2C=CHCOCH3, and 3-penten,2-one CH3CH=CHCOCH3] to the corresponding ?,?-unsaturated alcohols has been investigated on gold-supported catalysts. Au/Fe2O3 and Au/Al2O3 have been prepared by coprecipitation and deposition-precipitation. The catalytic behavior of a Au/Fe2O3 \"reference\" catalyst supplied by the World Gold Council has been also investigated. In the hydrogenation of benzalacetone and 4-methyl,3-penten,2-one on the \"homemade\" Au/Fe2O3 catalysts the unsaturated alcohol is the main reaction product. Chemoselectivity higher than 60% was achieved. On Au/Al2O3, the selectivity is 10%. It is noteworthy that within the gold supported on iron oxide samples, the reference catalyst shows the lowest selectivity toward the formation of the unsaturated alcohol. In the hydrogenation of 3-penten,-2-one on the homemade Au/Fe2O3, the saturated ketone is the main reaction product and the selectivity toward the formation of the unsaturated alcohol is 15% at conversion >90%. It is likely that the absence of bulky substituents on the conjugated C=C double bond favors its adsorption on the catalytic sites, leading to the formation of the saturated carbonyl compounds as the main reaction product. A detailed characterization of the investigated catalysts by TEM and XRD is also reported. (literal)
Prodotto di
Autore CNR

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
data.CNR.it