Conversion of hexose into 5-hydroxymethylfurfural in imidazolium ionic liquids with and without a catalyst

doi:10.1016/j.carres.2011.03.015

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	Conversion of hexose into 5-hydroxymethylfurfural in imidazolium ionic liquids with and without a catalyst
	Cao, Quan1 ; Guo, Xingcui1 ; Yao, Shengxi 1; Guan, Jing1 ; Wang, Xiaoyan1 ; Mu, Xindong 1; Zhang, Dongke1,2
	2011-05-15
发表期刊	CARBOHYDRATE RESEARCH
ISSN	0008-6215
卷号	346 期号:7 页码:956-959
摘要	Conversion of fructose and glucose into 5-hydroxymethylfurfural (HMF) was investigated in various imidazolium ionic liquids, including 1-butyl-3-methylimidazolium chloride (BmimCl), 1-hexyl-3-meth-ylimidazolium chloride (HmimCl), 1-octyl-3-methylimidazolium chloride (OmimCl), 1-benzyl-3-methylimidazolium chloride (BemimCl), 1-Butyl-2,3-dimethylimidazolium chloride (BdmimCl), and 1-butyl-3-methylimidazolium p-toluenesulfonate (BmimPS). The acidic C-2 hydrogen of imidazolium cations was shown to play a major role in the dehydration of fructose in the absence of a catalyst, such as sulfuric acid or CrCl3. Both the alkyl groups of imidazolium cations and the type of anions affected the reactivity of the carbohydrates. Although, except BmimCl and BemimCl, other four ionic liquids could only achieve not more than 25% HMF yields without an additional catalyst, 60-80% HMF yields were achieved in HmimCl, BdmimCl, and BmimPS in the presence of sulfuric acid or CrCl3 in sufficient quantities.; Conversion of fructose and glucose into 5-hydroxymethylfurfural (HMF) was investigated in various imidazolium ionic liquids, including 1-butyl-3-methylimidazolium chloride (BmimCl), 1-hexyl-3-methylimidazolium chloride (HmimCl), 1-octyl-3-methylimidazolium chloride (OmimCl), 1-benzyl-3-methylimidazolium chloride (BemimCl), 1-Butyl-2,3-dimethylimidazolium chloride (BdmimCl), and 1-butyl-3-methylimidazolium p-toluenesulfonate (BmimPS). The acidic C-2 hydrogen of imidazolium cations was shown to play a major role in the dehydration of fructose in the absence of a catalyst, such as sulfuric acid or CrCl(3). Both the alkyl groups of imidazolium cations and the type of anions affected the reactivity of the carbohydrates. Although, except BmimCl and BemimCl, other four ionic liquids could only achieve not more than 25% HMF yields without an additional catalyst, 60-80% HMF yields were achieved in HmimCl, BdmimCl, and BmimPS in the presence of sulfuric acid or CrCl(3) in sufficient quantities. (C) 2011 Elsevier Ltd. All rights reserved.
文章类型	Article
关键词	Fructose Glucose Hmf Imidazolium Ionic Liquids
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI	10.1016/j.carres.2011.03.015
关键词[WOS]	SOLID ACID CATALYSTS ; SUBCRITICAL WATER ; FRUCTOSE ; DEHYDRATION ; BIOMASS ; GLUCOSE ; FURANS ; DECOMPOSITION ; HYDROCARBONS ; TEMPERATURE
收录类别	SCI
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
WOS类目	Biochemistry & Molecular Biology ; Chemistry, Applied ; Chemistry, Organic
WOS记录号	WOS:000291176400010
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/620
专题	绿色化学催化研究组
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Peoples R China 2.Univ Western Australia, Ctr Energy M473, Nedlands, WA 6009, Australia
推荐引用方式 GB/T 7714	Cao, Quan,Guo, Xingcui,Yao, Shengxi,et al. Conversion of hexose into 5-hydroxymethylfurfural in imidazolium ionic liquids with and without a catalyst[J]. CARBOHYDRATE RESEARCH,2011,346(7):956-959.
APA	Cao, Quan.,Guo, Xingcui.,Yao, Shengxi.,Guan, Jing.,Wang, Xiaoyan.,...&Zhang, Dongke.(2011).Conversion of hexose into 5-hydroxymethylfurfural in imidazolium ionic liquids with and without a catalyst.CARBOHYDRATE RESEARCH,346(7),956-959.
MLA	Cao, Quan,et al."Conversion of hexose into 5-hydroxymethylfurfural in imidazolium ionic liquids with and without a catalyst".CARBOHYDRATE RESEARCH 346.7(2011):956-959.

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