Study on the alcoholysis of isoflavone catalyzed by ionic liquids

被引：0
作者：
Zuojun Wei
Yong Huang
Shuguang Deng
Dipendu Saha
Yingxin Liu
Qilong Ren
机构：
[1] Zhejiang University,Department of Chemical and Biochemical Engineering, College of Materials Science and Chemical Engineering
[2] New Mexico State University,Department of Chemical Engineering
[3] Zhejiang University of Technology,College of Pharmaceutical Science, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology
来源：
Reaction Kinetics and Catalysis Letters | 2008年 / 95卷
关键词：
Alcoholysis; ionic liquid; isoflavone; activation energy; reaction kinetics;
D O I：
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学科分类号：
摘要：
Alcoholysis of soybean isoflavone glucosides by butanol catalyzed by acidic ionic liquids was studied. The effects of the ionic liquid catalyst type, catalyst concentration, reaction time and reaction temperature on glycoside conversions, and aglycons yields were investigated. The optimum reaction conditions are found to be as follows: 0.036 g mL−1 of ionic liquid [BIM]HSO4 as catalyst, reaction temperature at 104±1°C, reaction time of 100 min. Under these optimum reaction conditions near complete conversions of the three kinds of glycosides (daidzin, glycitin and genistin) are obtained. Furthermore, the kinetics parameters for the alcoholysis were estimated. The activation energies of alcoholysis for the three kinds of isoflavone glucosides are 124 kJ mol−1, 67 kJ mol−1 and 115 kJ mol−1, respectively.
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页码：257 / 264
页数：7
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