期刊
CARBOHYDRATE RESEARCH
卷 345, 期 12, 页码 1698-1701出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2010.05.019
关键词
Dehydration; 5-Hydroxymethylfurfural; D-Fructose; Protic ionic liquid; Biomass conversion
资金
- China Postdoctoral Science Foundation [20080440676, 200902273]
- Natural Science Foundation of China [20425619]
- Program of Introducing Talents [B06006]
- Program for Changjiang Scholars and Innovative Research Teams in Universities [IRT 0641]
The renewable furan-based platform chemical, 5-hydroxymethylfurfural (HMF), has been efficiently synthesized from D-fructose and sucrose in the presence of a catalytic amount of protic ionic liquids. The 1-methylimidazolium-based and N-methylmorpholinium-based ionic liquids are employed. As a result, 74.8% and 47.5% yields of HMF are obtained from D-fructose and sucrose, respectively, at 90 degrees C for 2 h under nitrogen atmosphere when N-methylmorpholinium methyl sulfonate ([NMM](+)[CH3SO3](-)) is used as the catalyst in an N,N-dimethylformamide-lithium bromide (DMF-LiBr) system. The acidities of ionic liquids are determined by the Hammett method, and the correlation between acidity and catalytic activity is discussed. Moreover, the effects of reaction temperature and time are investigated, and a plausible reaction mechanism for the dehydration of D-fructose is proposed. (C) 2010 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据