文献类型：期刊文献

英文题名：Choline taurinate: a new biocompatible amino-functionalized ionic liquid as basic catalyst and extraction solvent

作者：Deng, Wenxiu[1];Liu, Lujie[1];Peng, Yanqing[1]

机构：[1]East China Univ Sci & Technol, Sch Pharm, Shanghai Key Lab Chem Biol, Shanghai, Peoples R China

年份：2018

卷号：7

期号：3

起止页码：191

外文期刊名：GREEN PROCESSING AND SYNTHESIS

收录：;EI(收录号：20224413046378);WOS:【SCI-EXPANDED(收录号:WOS:000433918000002)】；

基金：The authors gratefully acknowledge the financial support from the Shanghai Commission of Science and Technology (Project no. 08431901800).

语种：英文

外文关键词：catalysis; choline taurine; extraction; ionic liquids; recyclability

摘要：A new biocompatible amino-functionalized ionic liquid composed solely of biomaterials was synthesized from taurine and choline hydroxide, and its physical properties (density, viscosity, miscibility and thermal stability) were also determined. The classic base-promoted three-component cyclic condensation of aromatic aldehydes, malononitrile and dimedone was chosen as the test reaction to demonstrate the catalytic activity of choline taurinate ([Ch][Tau]). The catalyst could be recovered and reused several times with no significant loss of activity. As a basic ionic liquid, [Ch][Tau] can extract acidic compounds from immiscible solvents through acid-base interaction. The extraction process of fluorescent dye Rhodamine B was monitored using ultraviolet-visible (UV-Vis) spectroscopy, by which the percentage extraction rate was determined as 95%.