Functional ionic liquids as effective catalysts for the preparation of genistein and daidzein
文献类型： 外文期刊
作者： Hu, Xiaomei 1 ; Zhang, Bixian 2 ; Yuan, Zan 3 ; Hu, Baozhong 1 ;
作者机构： 1.Northeast Agr Univ, Coll Life & Sci, Harbin 150030, Peoples R China
2.Heilongjiang Acad Agr Sci, Harbin 150086, Peoples R China
3.Northeast Agr Univ, Coll Sci, Harbin 150030, Peoples R China
关键词： Functional ionic liquids;genistein;daidzein;hydrolysis
期刊名称：JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT （ 影响因子：0.435； 五年影响因子：0.484 ）
ISSN： 1459-0255
年卷期： 2013 年 11 卷 2 期
页码：
收录情况： SCI
摘要： Use of large amount of extraction solvents has limited preparations of genistein and daidzein, which have proved effective in prevention of many diseases. In the present study, preparation of genistein and daidzein using functional acidic ionic liquids (ILs) as novel catalysts was tried. The functional ILs showed excellent catalytic activities. High yields were obtained with the use of ionic liquid 1,4-bis(3-methylimidazolium)butane hydrogen sulfate, [MIM](2)C-4[HSO4](2). The optimum reaction conditions are as follows: IL concentration of 1 mmol/ml, temperature of 95 degrees C, and time 3 h, with the conversion rate of daidzein reaching 95.9%; IL concentration of 1 mmol/ml, temperature of 100 degrees C and time of 3 h and the conversion of genistein was 92.3%. The catalyst was reused for 6 runs without obviously decreased reaction rates.
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