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

Molecules

Yan Gong¹ 

[1] Department of Resources Science and Engineering, State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China

关键词: oxidative decarboxylation;    levulinic acid;    silver nitrate;    potassium persulfate;   

DOI  :  10.3390/molecules16032714

来源: mdpi

【 摘 要 】

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%.

【 授权许可】

CC BY   
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.