Conversion of fructose into 5-HMF catalyzed by GeCl₄ in DMSO and [Bmim]Cl system at room temperature

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• 作者：Zehui Zhang^a ; ^{zehuizh@mail.ustc.edu.cn} ; Bing Liu^a ; Zongbao (Kent) Zhao^b ; ^c
• 关键词：Fructose ; Germanium(IV) chloride ; Ionic liquids ; Dehydration ; 5-Hydroxymethylfurfual
• 刊名：Carbohydrate Polymers
• 出版年：2012
• 期刊代码：14_01448617
• 类别：ch
• 出版时间：15 April, 2012
• 卷：88
• 期：3
• 页码：891-895
• 文件大小：495 K

摘要

Conversion of fructose into 5-hydroxymethylfurfural (HMF) catalyzed by Germanium(IV) chloride was studied in Dimethyl sulfoxide (DMSO) and [Bmim]Cl system at room temperature. The structure of ionic liquids and the ratio of ionic liquids to DMSO had a remarkable effect on this new catalytic system. The results indicated that 1-n-butyl-3-methylimidazolium chloride ([Bmim]Cl) was favorable for the dehydration of fructose to HMF. Under optimal conditions, a high HMF yield in 70%was obtained at 25 掳C. In addition, it was also proved that there was a synergistic effect between the cation and anion of [Bmim]Cl on the dehydration of fructose to HMF by designed experiments. Finally, a possible mechanism for the dehydration of fructose to HMF was proposed.