Highly efficient preparation of 5-hydroxymethylfurfural from sucrose using ionic liquids and heteropolyacid catalysts in dimethyl sulfoxide–water mixed solvent  

作　　者：Song-Bai Yu Hong-Jun Zang Xiao-Li Yang Ming-Chuan Zhang Rui-Rui Xie Pei-Fei Yu 

机构地区：[1]State Key Laboratory of Hollow Fiber Membrane Materials and Processes,Department of Environmental and Chemical Engineering,Tianjin Polytechnic University,Tianjin 300387,China

出　　处：《Chinese Chemical Letters》2017年第7期1479-1484,共6页中国化学快报（英文版）

基　　金：financial support from National Natural Science Foundation of China(No.21406166);the Municipal Natural Science Foundation of Tianjin(No.15JCQNJC13900)

摘　　要：Several types of ILs and solid acids were used as catalysts in one-pot conversion of sucrose to 5-hydroxymethylfurfural（abbreviated as 5-HMF） in a dimethyl sulfoxide（DMSO）/water mixed solvent under hydrothermal conditions. A remarkable 5-HMF yield of 91.8% was achieved catalyzed by the cesium salt of dodecatungstophosphoric acid（Cs（2.3）H（0.7）PW（12）O（40）） within 3 h at 180 C. The ionic liquid N-methylimidazolium hydrogen sulfate（[Hmim][HSO4]） gave the 5-HMF in 82.0% yield from sucrose. To the best of our knowledge, it was almost the highest yield of HMF from sucrose by now. Various reaction parameters including reaction temperature and time and catalyst dosage were optimized. A possible mechanism for this catalytic process was proposed. Furthermore, fructose and glucose were also investigated, good yields of 5-HMF was obtained respectively. This increases the possibility of large-scale production of 5-HMF from carbohydrates.Several types of ILs and solid acids were used as catalysts in one-pot conversion of sucrose to 5-hydroxymethylfurfural（abbreviated as 5-HMF） in a dimethyl sulfoxide（DMSO）/water mixed solvent under hydrothermal conditions. A remarkable 5-HMF yield of 91.8% was achieved catalyzed by the cesium salt of dodecatungstophosphoric acid（Cs（2.3）H（0.7）PW（12）O（40）） within 3 h at 180 C. The ionic liquid N-methylimidazolium hydrogen sulfate（[Hmim][HSO4]） gave the 5-HMF in 82.0% yield from sucrose. To the best of our knowledge, it was almost the highest yield of HMF from sucrose by now. Various reaction parameters including reaction temperature and time and catalyst dosage were optimized. A possible mechanism for this catalytic process was proposed. Furthermore, fructose and glucose were also investigated, good yields of 5-HMF was obtained respectively. This increases the possibility of large-scale production of 5-HMF from carbohydrates.

关 键 词：5-Hydroxymethylfurfural Sucrose Hydrothermal conversion Ionic liquid Solid acid 

分 类 号：O643.36[理学—物理化学] TQ251.11[理学—化学]