Glycerol eutectics as sustainable solvent systems
Glycerol eutectics as sustainable solvent systems
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DOI：
10.1039/c0gc00395f
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发表时间：
2011-01-01
期刊：
影响因子：
9.8
通讯作者：
Mantle, Mick D.
中科院分区：
文献类型：
--
作者：
Abbott, Andrew P.;Harris, Robert C.;Mantle, Mick D.
在这项工作中，使用甘油作为氢键供体在深Eu3+溶剂进行了研究。氯化胆碱与甘油的混合物的物理性质进行了量化，它表明，低共熔混合物可以规避使用甘油作为溶剂的一些困难，即。高粘度和高熔点。溶剂的性质，其特征在于使用极性参数和值是类似于其他离子液体，虽然它表明，这一程序是一个穷人的方法表征刘易斯碱度。将这些液体应用于甘油的酯化被用作用季铵卤化物作为准保护基调节反应的能力的证明。该液体代表了制备无毒、可调溶剂系统的可持续方式。
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.