Synthesis and Antimicrobial Activity of Imidazolium and Triazolium Chiral Ionic Liquids
作者:Paweł Borowiecki、Małgorzata Milner-Krawczyk、Dominika Brzezińska、Monika Wielechowska、Jan Plenkiewicz
DOI:10.1002/ejoc.201201245
日期:2013.2
simple and efficient procedure for the synthesis of new optically active imidazolium and triazolium ionic liquids in a three step reaction sequence is described. In the first step, the ring opening of 1,2-butylene oxide by imidazole or 1,2,4-triazole resulted in the formation of N-2-hydroxybutylimidazole and N-2-hydroxybutyl-1,2,4-triazole, respectively. In the second step, racemic mixtures of the secondary
描述了一种在三步反应序列中合成新型光学活性咪唑鎓和三唑鎓离子液体的简单有效的程序。在第一步中,1,2-环氧丁烷被咪唑或1,2,4-三唑开环导致形成N-2-羟基丁基咪唑和N-2-羟基丁基-1,2,4-三唑,分别。在第二步中,通过脂肪酶催化的烯醇酯(乙酸乙烯酯和 1-乙酰氧基-2-甲基环己烯)酯交换,以良好的对映选择性拆分仲醇的外消旋混合物。在最后一步中,旋光中间体用几种卤代烷烃进行烷基化,得到旋光离子液体。测试合成的离子液体对革兰氏阴性和革兰氏阳性细菌和真菌的抑制活性。