高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (11): 2104-2107.

• 研究论文 • 上一篇    下一篇

羟基新戊醛直接电氧化合成羟基新戊酸的研究

余建国, 张恒彬, 李斐, 曹学静, 林英杰   

  1. 吉林大学化学学院, 长春130023
  • 收稿日期:2003-09-16 出版日期:2004-11-24 发布日期:2004-11-24
  • 基金资助:

    国家自然科学基金(批准号:20373020)资助

Synthesis of Hydroxypivalic Acid via Direct Electrooxidation of Hydroxypivalaldehyde

YU Jian-Guo, ZHANG Heng-Bin, LI Fei, CAO Xue-Jing, LIN Ying-Jie   

  1. College of Chemistry, Jilin University, Changchun 130023, China
  • Received:2003-09-16 Online:2004-11-24 Published:2004-11-24

摘要: 在硫酸水溶液中,以质子交换膜为隔膜,以羟基新戊醛为原料,在PbO2电极上直接电氧化制取羟基新戊酸.研究了羟基新戊醛浓度、pH、温度及氧化电位对目标产物选择性和电流效率的影响.结果发现,pH对产物选择性和电流效率的影响最大.选择性最高可达92.6%,电流效率最高可达61.4%.用高效液相色谱分析反应过程中原料和产物的浓度变化.通过熔点、红外光谱和元素分析对分离提纯后的产物进行了表征.

关键词: 羟基新戊醛, 羟基新戊酸, 电氧化, 高效液相色谱

Abstract: Hydroxypivalic acid was synthesized by oxidation of hydroxypivalaldehyde at PbO2 electrode in sulfuric acid solution with proton exchange membrane. The change trends of the selectivity and the current efficiency with changing the concentration of hydroxypivalaldehyde, pH, reaction temperature and anode potential were studied. It was found that the effect of pH on the selectivity and the current efficiency is the largest. The highest selectivity is 92.6%, the highest current efficiency is 61.4%. High performance liquid chromatography was used to analyze the concentrations of products and reactants. The melting point, elemental analysis and IR spectrum were used to characterize the product after the separation and purification.

Key words: Hydroxypivalaldehyde, Hydroxypivalic acid, Electrooxidation, HPLC

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