liquids (ChAAILs) were much environmentally friendly. Therefore, the ChAAILs/salt aqueous two-phase systems (ATPSs) were developed for the chiral resolution of valine enantiomers in this study. The copper complexes were prepared by ChAAILs and Cu(Ac)2, which can be used as both the phase-forming components and the chiral selectors. A series of factors affecting the enantioseparation result were investigated
广泛报道杂环
离子液体(ILs)具有较高的
生物毒性,而
胆碱氨基酸离子液体(Ch
AAILs)对环境非常友好。因此,在这项研究中,开发了Ch
AAIL /盐
水溶液两相系统(
ATPS)用于手性拆分缬
氨酸对映体。
铜配合物是通过Ch
AAIL和Cu(Ac)2制备的,它们既可以用作相形成组分,又可以用作手性选择剂。研究了影响对映体分离结果的一系列因素,包括Ch
AAIL的类型和浓度,Ch
AAIL与Cu(Ac)2的摩尔比,盐的类型和浓度,缬
氨酸的浓度以及操作温度。缬
氨酸对映异构体在富含Ch
AAIL的相(上相)中被优先识别,在上相中获得的最大ee值为55.6%。该用于缬
氨酸对映体对映体分离的
ATPS具有环境友好,对映体分离效率高,一步提取操作简单的优点。