[Wiley数据库][2011]Catalytic Conversion of Carbohydrates into 5-Hydroxymethylfurfural by Germanium(IV)--中科院兰州化物所离子液体

[Wiley数据库][2011]Catalytic Conversion of Carbohydrates into 5-Hydroxymethylfurfural by Germanium(IV)

发布时间:2016-01-20 11:13:49 阅读次数:

题名	[Wiley数据库][2011] Catalytic Conversion of Carbohydrates into 5-Hydroxymethylfurfural by Germanium(IV) Chloride in ionic liquids
参考引用方式	Zehui Zhang, Qian Wang, Haibo Xie, Wujun Liu, and Zongbao (Kent) Zhao. ChemSusChem 2011, 4, 131–138
研究机构	大连化学物理研究所
所涉及离子液体	1-丁基-3-甲基咪唑氯盐 79917-90-1
研究领域	离子液体；GeCl4；碳水化合物的催化转化
论文摘要	Direct conversion of carbohydrates into 5-hydroxymethylfurfural (HMF) catalyzed by germanium(IV) chloride in ionic liquids has been investigated in search of an efficient and environmentally friendly process. Monosaccharides d-fructose and d-glucose, disaccharides sucrose and maltose, and even the polysaccharide cellulose were successfully converted into HMF with good yields under mild conditions (yield up to 92% in 5 min in the case of fructose). The structure of ionic liquids,catalyst loading, reaction temperature and water content had noticeable effects on this catalytic system. Addition of 5-molecular sieves during the dehydration of glucose resulted in an increase in HMF yield from 38.4% to 48.4%. A mechanism for glucose conversion to HMF catalyzed by germanium(IV) chloride was proposed according to 13C NMR spectra obtained in situ under different conditions using d-glucose-2-13C as the substrate.
关键词	Ionic liquid/ germanium(IV) chloride/ catalytic conversion/ carbohydrates/ 5-Hydroxymethylfurfural