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Efficient method for Knoevenagel condensation in aqueous solution of amino acid ionic liquids (AAILs) Cover

Efficient method for Knoevenagel condensation in aqueous solution of amino acid ionic liquids (AAILs)

Open Access
|Dec 2016

Abstract

This work reports on the use of the amino acid ionic liquids (AAILs) which have been used as catalysts in Knoevenagel condensation of various aldehydes with malononitrile. For research we use tetrabutylammonium ionic liquids based on eight natural amino acids. The reaction was carried out in an aqueous medium. Using water as solvent provided efficient and simple method of isolation of pure product with high yield. Moreover, amino acid ionic liquid dissolved in water could be reused many times without any loss of its catalytic activity. The influence of the anion was studied. Moreover the effect of technological parameters such as: the temperature, the catalyst content, and the reaction time on yield of reaction were investigated.

Language: English
Page range: 90 - 95
Published on: Dec 30, 2016
Published by: West Pomeranian University of Technology, Szczecin
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2016 Paula Ossowicz, Zbigniew Rozwadowski, Marcin Gano, Ewa Janus, published by West Pomeranian University of Technology, Szczecin
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.