Enantiomeric Separations of Ruthenium (II) Polypyridyl Complexes Using HPLC With Cyclofructan Chiral Stationary Phases
作者:Yang Shu、Zachary S. Breitbach、Milan K. Dissanayake、Sirantha Perera、Joseph M. Aslan、Nagham Alatrash、Frederick M. MacDonnell、Daniel W. Armstrong
DOI:10.1002/chir.22389
日期:2015.1
The enantiomeric separation of 21 ruthenium (II) polypyridyl complexes was achieved with a novel class of cyclofructan‐based chiral stationary phases (CSPs) in the polar organic mode. Aromatic derivatives on the chiral selectors proved to be essential for enantioselectivity. The R‐napthylethyl carbamate functionalized cyclofructan 6 (LARIHC CF6‐RN) column proved to be the most effective overall, while
通过一类新型的基于环果聚糖的手性固定相(CSP)以极性有机模式实现了21个钌(II)聚吡啶基配合物的对映体分离。经证明,手性选择剂上的芳族衍生物对于对映体选择性至关重要。氨基甲酸R-萘甲酸乙基酯官能化的环果聚糖6(LARIHC CF6-RN)色谱柱被认为是最有效的色谱柱,而氨基甲酸二甲基苯基酯环果聚糖7(LARIHC CF7-DMP)具有互补选择性。酸和碱添加剂的组合对于最佳分离是必要的。保留因子VS 。乙腈/甲醇比率图显示了U形保留曲线,表明在不同极性有机溶剂的组成上会发生不同的相互作用。分离结果表明,在极性有机模式下,π-π相互作用,空间效应和氢键有助于钌(II)聚吡啶基配合物与环果聚糖手性固定相的对映体分离。手性27:64–70,2015。©2014 Wiley Periodicals,Inc.