专业从事离子液体的合成、应用及其相关技术的研究工作----Lanzhou Greenchem ILs/青岛奥立科

题名

[Wiley数据库][2012]Dehydration of Carbohydrates to 5-Hydroxymethylfurfural in ionic liquids Catalyzed by Hexachlorotriphosphazene

参考引用方式

Song, Jinliang(宋金良)  Zhang, Binbin(张斌斌)  Shi, Jinghua(史敬华)    Ma, Jun(马珺)  Yang, Guanying(杨冠英)  Han, Buxing(韩布兴). Chin. J. Chem. 2012, 30, 2079—2084

研究机构

中国科学院化学研究所北京分子科学国家实验室

所涉及离子液体

1-丁基-3-甲基咪唑氯盐        79917-90-1

研究领域

碳水化合物脱水；5-羟甲基糠醛；离子液体；六氯环三磷腈

论文摘要

Development of efficient catalysts for the dehydration of carbohydrates to produce 5-hydroxymethylfurfural (HMF) is a very attractive topic. In this work, dehydration of fructose catalyzed by three organic molecules, including hexachlorotriphosphazene (N3P3Cl6), trichloromelamine (C3N6H3Cl3) and N-bromosuccinimide (NBS), was studied in ionic liquids. It was discovered that the three organic molecules had high activity in accelerating the dehydration of fructose and N3P3Cl6 was the most efficient catalyst among them. The effects of amount of catalysts, temperature, solvents, reaction time, and substrate/solvent weight ratio on the reaction were investigated using N3P3Cl6 as the catalyst and 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) as the solvent. It was demonstrated that the N3P3Cl6/[Bmim]Cl catalytic system was very effective for catalyzing the reaction. The yield of HMF could reach 92.8% in 20 min at the optimized conditions and the N3P3Cl6/[Bmim]Cl system could be reused. Further study indicated that the N3P3Cl6/[Bmim]Cl system was also effective for the dehydration of sucrose and inulin and satisfactory yield could be obtained at suitable conditions.

关键词

carbohydrates, 5-hydroxymethylfurfural, dehydration, hexachlorotriphosphazene, ionic liquids