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首页> 外文期刊>ACS combinatorial science >Enantioselective Liquid-Solid Extraction (ELSE)-An Unexplored, Fast, and Precise Analytical Method
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Enantioselective Liquid-Solid Extraction (ELSE)-An Unexplored, Fast, and Precise Analytical Method

机译:对映选择性液体固相萃取(ELSE)-一种未经探索,快速而精确的分析方法

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摘要

A novel method of evaluating the enantioselectivity of chiral receptors is investigated. It involves extraction of an ionic guest in racemic form from an ion-exchange resin to the organic solvent, where it is bound by a chiral receptor. The enantioselectivity of the examined receptor is determined simply by measuring the enantiomeric excess of the extracted guest. We show that the concept is viable for neutral receptors binding chiral organic anions extracted into acetonitile. This method was determined to be more accurate and far less time-consuming than the classical titrations. Multiple racemic guests can be applied to a resin in a single experiment, giving the method a very high throughput.
机译:研究了一种评价手性受体对映选择性的新方法。它涉及从离子交换树脂到有机溶剂中以外消旋形式提取离子客体,并在此与手性受体结合。简单地通过测量提取的客体的对映体过量来确定所检查受体的对映体选择性。我们表明,该概念对于结合手性有机阴离子提取到乙腈中的中性受体是可行的。与传统的滴定法相比,该方法被确定为更准确且耗时更少。可以在一个实验中将多个外消旋客体应用于树脂,从而使该方法具有很高的通量。

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