O-Methylatrolactic acid as a new reagent for determination of the enantiomeric purity and absolute configuration of chiral alcohols and amines
作者:Rafał Kowalczyk、Jacek Skarżewski
DOI:10.1016/j.tetasy.2006.05.006
日期:2006.5
Easily available in both enantiomeric forms, O-methylatrolactic acid (MAA) was successfully used as a newchiral derivatizing agent. Enantiomeric purities and the absoluteconfigurations of chiral secondary alcohols and amines were determined using the observed differences in 1H NMR chemical shifts. The Mosher’s stereochemical model explains the conformational preferences of the respective diastereomeric
容易以两种对映体形式获得,O-甲基脂肪酸(MAA)已成功用作新的手性衍生剂。使用观察到的1 H NMR化学位移差异确定对映体纯度以及手性仲醇和胺的绝对构型。Mosher的立体化学模型解释了相应的非对映异构MAA酯和酰胺的构象偏爱。相应构象异构体的DFT计算结果证实了这一点。
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