Isotopic Labeling for Determination of Enantiomeric Purity by <sup>2</sup>H NMR Spectroscopy
作者:Hayley Jackman、Stephen P. Marsden、Peter Shapland、Simon Barrett
DOI:10.1021/ol702225r
日期:2007.12.1
The use of 2H NMR spectroscopy as a tool for the analysis of enantiomericpurity is reported. Enantiopure isotopically chiral substrates bearing a monodeuterated methylene unit were prepared; introduction of an additional asymmetric center leads to diastereomers which can be distinguished by 2H NMR on a standard spectrometer. The assays allow for simple semiquantitative analysis of asymmetric transformations
据报道,使用2 H NMR光谱作为分析对映体纯度的工具。制备了带有单氘化亚甲基单元的对映体纯净的同位素手性底物。引入另外的不对称中心会导致非对映异构体,这可以通过标准光谱仪上的2 H NMR进行区分。该测定法允许对不对称转化进行简单的半定量分析。