Journal
GREEN CHEMISTRY
Volume 14, Issue 9, Pages 2506-2512Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2gc35699f
Keywords
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Funding
- National Basic Research Program of China [2010CB732306]
- National Natural Science Foundation of China [20973058]
- Commission of Science and Technology of Shanghai Municipality [10XD1401400]
- Fundamental Research Funds for the Central Universities
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5-Hydroxymethylfurfural (HMF) is a very important intermediate in the fine chemical industry. This study aims to investigate the direct conversion of glucose or glucose-based carbohydrates, such as sucrose, cellobiose, inulin, starch and cellulose, to HMF by using a Sn-Mont catalyst. With the use of this catalyst, a HMF yield of 53.5% was achieved from glucose in a mono-phase medium of tetrahydrofuran (THF)/dimethylsulfoxide (DMSO) at 160 degrees C for 3 h. The success of one-step conversion of glucose to HMF is attributed to the Sn-Mont catalyst containing two types of acid sites, Lewis acid and Bronsted acid sites. The former one plays a crucial role in the isomerization of glucose to fructose and the latter one is active in the dehydration of generated fructose to HMF. Furthermore, Sn-Mont catalyst also demonstrated excellent activity in the conversion of disaccharides and polysaccharides and as high as 39.1% HMF was directly obtained from cellulose in a THF/H2O-NaCl bi-phasic system.
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