Journal
CATALYSIS LETTERS
Volume 142, Issue 9, Pages 1114-1120Publisher
SPRINGER
DOI: 10.1007/s10562-012-0872-7
Keywords
Gold catalysis; Gold palladium alloy nanoparticles; Oxidative esterification; Diol oxidation
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Funding
- Glycerol Challenge and Tennants Fine Chemicals Ltd
- Technology Strategy Board
- Technology Strategy Boards Collaborative Research and Development programme
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The oxidative esterification of a homologous series of diols (1,3-propanediol,2-methyl-propanediol and 2,2-dimethyl-1,3-propanediol) with methanol has been investigated using titania-supported gold, palladium and gold-palladium catalysts using molecular oxygen. The gold-palladium catalysts showed the highest activity and 1,3-propanediol was the most reactive while the additional methyl groups decreased the reactivity. However, it is possible to achieve high selectivity to methyl 3-hydroxypropionate and 2-methyl-3-hydroxyisobutyrate by mono-oxidations.
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