The Highly Selective and Near-Quantitative Conversion of Glucose to 5-Hydroxymethylfurfural Using Ionic Liquids

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Title: The Highly Selective and Near-Quantitative Conversion of Glucose to 5-Hydroxymethylfurfural Using Ionic Liquids
Authors: Eminov, S
Brandt, A
Wilton-Ely, JD
Hallett, JP
Item Type: Journal Article
Abstract: A number of ionic liquids have been shown to be excellent solvents for lignocellulosic biomass processing, and some of these are particularly effective in the production of the versatile chemical building block 5-hydroxymethylfurfural (HMF). In this study, the production of HMF from the simple sugar glucose in ionic liquid media is discussed. Several aspects of the selective catalytic formation of HMF from glucose have been elucidated using metal halide salts in two distinct ionic liquids, 1-butyl-3-methylimidazolium chloride and 1-butyl-3-methylimidazolium hydrogen sulfate as well as mixtures of these, revealing key features for accelerating the desired reaction and suppressing byproduct formation. The choice of ionic liquid anion is revealed to be of particular importance, with low HMF yields in the case of hydrogen sulfate-based salts, which are reported to be effective for HMF production from fructose. The most successful system investigated in this study led to almost quantitative conversion of glucose to HMF (90% in only 30 minutes using 7 mol% catalyst loading at 120°C) in a system which is selective for the desired product, has low energy intensity and is environmentally benign.
Issue Date: 6-Oct-2016
Date of Acceptance: 22-Aug-2016
URI: http://hdl.handle.net/10044/1/41551
DOI: http://dx.doi.org/10.1371/journal.pone.0163835
ISSN: 1932-6203
Publisher: Public Library of Science
Journal / Book Title: PLOS One
Volume: 11
Issue: 10
Copyright Statement: © 2016 Eminov et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/K014676/1
Keywords: General Science & Technology
MD Multidisciplinary
Publication Status: Published
Open Access location: http://journals.plos.org/plosone/article/asset?id=10.1371/journal.pone.0163835.PDF
Article Number: e0163835
Appears in Collections:Chemistry
Catalysis and Advanced Materials
Chemical Engineering
Faculty of Natural Sciences



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