A solvent having switchable hydrophilicity

被引：296

作者：

Jessop, Philip G. ^{[1
]}

Phan, Lam ^{[1
]}

Carrier, Andrew ^{[1
]}

Robinson, Shona ^{[1
]}

Duerr, Christoph J. ^{[1
]}

Harjani, Jitendra R. ^{[1
]}

机构：

[1] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada

来源：

GREEN CHEMISTRY | 2010年 / 12卷 / 05期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ROOM-TEMPERATURE; CARBON-DIOXIDE; CHEMISTRY; AMIDINES;

D O I：

10.1039/b926885e

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

A new kind of switchable solvent, a switchable-hydrophilicity solvent, is hydrophobic and has very low miscibility with water when in air but is hydrophilic and has complete miscibility with water when under an atmosphere of CO(2). We report here the first example of such a solvent, N,N,N'-tributylpentanamidine. Solvents such as these could be used for the extraction of low-polarity organic products, such as vegetable oils, followed by the removal of the solvent from the product by carbonated water. Carbonated water is able to extract the solvent from the product because the CO(2) converts the solvent to its hydrophilic form. The solvent can then be separated from the carbonated water upon removal of the CO(2), because this removal triggers the conversion of the solvent back to its hydrophobic, water-immiscible form. Importantly, distillation is not required for removal of the solvent from the product.

引用

页码：809 / 814

页数：6

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