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Synthesis of 5-hydroxymethylfurfural from Monosaccharides Catalyzed by Superacid VNU-11-SO in 1-ethyl-3-methylimidazolium Chloride Ionic Liquid

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Journal RSC Adv
Specialty Chemistry
Date 2022 May 6
PMID 35515387
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Abstract

Superacid VNU-11-SO, a modified metal-organic framework by post-synthetic treatment with a sulfuric acid solution, has been considered as a promising heterogeneous catalyst in the isomerization of glucose to fructose and further dehydration to form 5-hydroxymethylfurfural (HMF) due to its possession of both Lewis and Brønsted acid sites. In this work, we focused on using VNU-11-SO for the optimization of the conversion of fructose and glucose into HMF using an ionic liquid as a green solvent. The highest yields of HMF from glucose and fructose could be obtained in 28% (140 °C, 8 h) and 86% (110 °C, 3 h), respectively, with the use of VNU-11-SO catalyst in 1-ethyl-3-methylimidazolium chloride ionic liquid. Recycling examination of the catalyst showed only a slight decrease in the HMF yield, implying its potential industrial application in biomass transformation.

Citing Articles

The Role Played by Ionic Liquids in Carbohydrates Conversion into 5-Hydroxymethylfurfural: A Recent Overview.

Marullo S, DAnna F Molecules. 2022; 27(7).

PMID: 35408609 PMC: 9000634. DOI: 10.3390/molecules27072210.

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