Aerobic oxidation of aldehydes under ambient conditions using supported gold nanoparticle catalysts
2008
Marsden, Charlotte | Taarning, Esben | Hansen, David | Johansen, Lars | Klitgaard, Søren K. | Egeblad, Kresten | Christensen, Claus Hviid
A new, green protocol for producing simple esters by selectively oxidizing an aldehyde dissolved in a primary alcohol has been established, utilising air as the oxidant and supported gold nanoparticles as catalyst. The oxidative esterifications proceed with excellent selectivities at ambient conditions; the reactions can be performed in an open flask and at room temperature. Benzaldehyde is even oxidised at a reasonable rate below −70 °C. Acrolein is oxidised to methyl acrylate in high yield using the same protocol.
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