Determination of Enantiomeric Excess and Diastereomeric Excess via Optical Methods. Application to α-methyl-β-hydroxy-carboxylic acids.

Determination of Enantiomeric Excess and Diastereomeric Excess via Optical Methods. Application to α-methyl-β-hydroxy-carboxylic acids.
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通过光学方法测定对映体过量和非对映体过量。

DOI:
10.1039/d2qo01444k
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发表时间:
2023
期刊:
Organic chemistry frontiers : an international journal of organic chemistry
影响因子:
--
通讯作者:
Anslyn,EricV
Anslyn,EricV
中科院分区:
--
文献类型:
--
作者:
Moor,SarahR;Howard,JamesR;Herrera,BrendenT;McVeigh,MatthewS;Marini,Federico;Keatinge-Clay,AdrianT;Anslyn,EricV

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溶液中手性分子的表征对于衡量反应成功与否至关重要。然而,通过使用光学技术来区分包含多个立构中心的手性分子仍然是一项挑战。在此,我们报告了一种使用一系列圆二色光谱来训练多元回归模型的技术,该模型能够预测 3-羟基-2-甲基丁酸立体异构体的完整形态。由此,可以快速准确地测定溶液的对映体过量和非对映体过量,而不需要手性色谱。
Characterization of chiral molecules in solution is paramount for measuring reaction success. However, techniques to distinguish between chiral molecules containing more than one stereocenter through the use of optical techniques remains a challenge. Herein, we report a technique using a series of circular dichroism spectra to train multivariate regression models that are capable of predicting the complete speciation of 3-hydroxy-2-methylbutanoic acid stereoisomers. From this, it is possible to rapidly and accurately determine the enantiomeric excess and diastereomeric excess of the solution without the need for chiral chromatography.
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影响因子: 23.5
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