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Molecules 2011, 16(3), 2714-2725; doi:10.3390/molecules16032714
Article

Oxidative Decarboxylation of Levulinic Acid by Silver(I)/Persulfate

 and *
Department of Resources Science and Engineering, State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
* Author to whom correspondence should be addressed.
Received: 3 December 2010 / Revised: 11 March 2011 / Accepted: 22 March 2011 / Published: 23 March 2011
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Abstract

The oxidative decarboxylation of levulinic acid (LA) by silver(I)/persulfate [Ag(I)/S2O82−] has been investigated in this paper. The effects of buffer solution, initial pH value, time and temperature and dosages of Ag(I)/S2O82− on the decarboxylation of LA were examined in batch experiments and a reaction scheme was proposed on basis of the reaction process. The experimental results showed that a solution of NaOH-KH2PO4 was comparatively suitable for the LA decarboxylation reaction by silver(I)/persulfate. Under optimum conditions (temperature 160 °C, pH 5.0, and time 0.5 h), the rate of LA conversion in NaOH-KH2PO4 solutions with an initial concentration of 0.01 mol LA reached 70.2%, 2-butanone (methyl ethyl ketone) was the single product in the gas phase and the resulted molar yield reached 44.2%.
Keywords: oxidative decarboxylation; levulinic acid; silver nitrate; potassium persulfate oxidative decarboxylation; levulinic acid; silver nitrate; potassium persulfate
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Gong, Y.; Lin, L. Oxidative Decarboxylation of Levulinic Acid by Silver(I)/Persulfate. Molecules 2011, 16, 2714-2725.

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