金属卤化物促进糖类催化转化制备5-羟甲基糠醛(英文)  

Catalytic conversion of carbohydrates to 5-hydroxymethylfurfural promoted by metal halides

作　　者：任秋鹤[1,2] 黄义争[1] 马红[1] 高进[1] 徐杰[1] 

机构地区：[1]中国科学院大连化学物理研究所催化基础国家重点实验室,洁净能源国家实验室,辽宁大连116023 [2]中国科学院大学,北京100049

出　　处：《催化学报》2014年第4期496-500,共5页

基　　金：supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (KSCX2‐E‐G‐5);the “Strategic Priority Research Program–Climate Change: Carbon Budget and Related Issues” of the Chinese Academy of Sciences (XDA05010203);The National Natural Science Foundation of China (21233008)~~

摘　　要：研究了碱金属卤化物对AlCl3催化葡萄糖转化制备5-羟甲基糠醛(HMF)的促进作用.结果表明,NaF对反应有显著抑制作用,而NaI和NaBr对反应有显著促进作用,而且NaI比NaBr的促进效果更明显.在N,N-二甲基乙酰胺(DMAC)中,以NaI为添加剂,130oC反应15 min,AlCl3催化葡萄糖转化制备HMF,葡萄糖转化率由71%提高到86%,HMF收率由36%提高到62%.AlCl3-NaI-DMAC体系也可用于果糖、甘露糖等单糖,蔗糖、麦芽糖、纤维二糖等二糖,以及菊粉等多糖的转化.以蔗糖为原料,HMF收率可达63%.The promotion effect of alkali metal halides toward the AlCl3-catalyzed conversion of glucose to 5-hydroxymethylfurfural （HMF） was investigated. The results show that NaF inhibited the reaction. However, NaI and NaBr promoted the reaction significantly, and the promotion effect of NaI was more obvious than that of NaBr. In N,N-dimethylacetamide （DMAC）, when NaI was used as an addi-tive for the AlCl3-catalyzed conversion of glucose at 130 ＆#176;C for 15 min, glucose conversion increased from 71% to 86%, and the HMF yield increased from 36% to 62%. The AlCl3-NaI-DMAC system could also be used for the catalytic conversion of other carbohydrates such as fructose, mannose, sucrose, maltose, cellobiose, and inulin to HMF. When sucrose was used as the feedstock, a 63% HMF yield was achieved.

关 键 词：糖类化合物 5-羟甲基糠醛 金属卤化物 催化 

分 类 号：TQ251.11[化学工程—有机化工]