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Citation: WANG Fuyu, LIU Yanli, WANG Chong, ZHAO Zhenbo. Dehydration of Fructose in Presence of Acidic Ionic Liquids to Prepare 5-Hydroxymethylfurfural[J]. Chinese Journal of Applied Chemistry, ;2014, 31(4): 424-430. doi: 10.3724/SP.J.1095.2014.30316 shu

Dehydration of Fructose in Presence of Acidic Ionic Liquids to Prepare 5-Hydroxymethylfurfural

1.
School of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, China

Corresponding author: ZHAO Zhenbo,
Received Date: 25 June 2013
Available Online: 27 August 2013

Conversion of fructose into 5-hydroxymethylfurfural(HMF) was investigated in various acidic ionic liquids as catalyst and solvent.The acidic ionic liquids include SO₃H^-functionalized ionic liquids,imidazolebased ionic liquids and pyridine-based acid ionic liquids.The catalysts were characterized by NMR and IR.The Hammett acidity function was obatined by UV-Vis measurements with an Hammett indicator.The acid strength was compared.The results show that the acid strength of catalysts affects the reaction.Ionic liquid has a high activity without the addition of other catalyst and solvent.When 1-butyl-3-methylimidazolium chloride(BmimCl) was used as the catalyst,the yield of HMF was 74.97% within 4 h at 120℃.
- acidic ionic liquids,
- fructose,
- hydroxymethylfurfural,
- Hammett acid function
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