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Issue 1, 2011
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Glycerol eutectics as sustainable solvent systems

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In this work the use of glycerol as a hydrogen bond donor in Deep Eutectic Solvents is studied. The physical properties of choline chloride mixtures with glycerol are quantified and it is shown that eutectic mixtures can circumvent some of the difficulties of using glycerol as a solvent viz. high viscosity and high melting point. The solvent properties are characterised using polarity parameters and the values are similar to other ionic liquids although it is shown that this procedure is a poor method of characterising Lewis basicity. The application of these liquids to the esterification of glycerol is used as a demonstration of the ability to tune a reaction with the quaternary ammonium halide acting as a quasi-protecting group. The liquids represent a sustainable way of preparing non-toxic, tuneable solvent systems.

Graphical abstract: Glycerol eutectics as sustainable solvent systems

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The article was received on 04 Aug 2010, accepted on 11 Oct 2010 and first published on 27 Oct 2010

Article type: Paper
DOI: 10.1039/C0GC00395F
Citation: Green Chem., 2011,13, 82-90
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    Glycerol eutectics as sustainable solvent systems

    A. P. Abbott, R. C. Harris, K. S. Ryder, C. D'Agostino, L. F. Gladden and M. D. Mantle, Green Chem., 2011, 13, 82
    DOI: 10.1039/C0GC00395F

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