Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxides

A review of the use of gold catalysts in selective hydrogenation reactions Lynsey McEwana

“…The bimetallic Au-In/ZnO catalysts performed particularly well, producing allyl alcohol with a selectivity of 63% (35). Similar research (36) has focused on the hydrogenation of crotanaldehyde and cinnamaldehyde over goldsupported iron oxides. For the size range studied (4-15 nm) differences in selectivity observed were attributed to the morphology of gold particles, with no significant influence of gold particle size.…”

“…Much research has recently been reported on the effectiveness of supported gold for the selective hydrogenation of multifunctional organic molecules, such as the chemoselective hydrogenation of , -unsaturated aldehydes to the unsaturated alcohol in preference to the saturated aldehyde or saturated alcohol (29)(30)(31)(32)(33)(34)(35)(36). Industrial interest in the production of unsaturated alcohols is based on their use as fragrances and as intermediates in the pharmaceuticals industry (29).…”

Improved chemoselective hydrogenation of crotonaldehyde over bimetallic AuAg/SBA-15 catalyst

“…have been reported as active catalysts for UAL hydrogenation to UOL [21][22][23][24][25][26][27]. Different from the favorable dissociative activation of dihydrogen on Pt, Au atoms on clean gold surface barely chemisorbed and dissociated dihydrogen.…”

Experimental and Theoretical Study of Low-Dimensional Iron Oxide Nanostructures

“…6. By using gold deposited iron oxide materials as a catalyst material, the oxidation and hydrogenation reaction of many organic compounds can be performed at much lower temperatures (Kung et al, 2007;Herzing et al, 2008;Lenz et al, 2009;Scirè et al, 2008). For example, Al-Sayari and co-workers (2007) have shown the dependence of the catalytic performance of Au/Fe 2 O 3 catalyst that the non-calcined Au/Fe 2 O 3 catalyst exhibited a high activity when pH≥ 5, whereas the activity of calcined Au/Fe 2 O 3 catalyst was not influenced by the preparation conditions.…”