A simple chiral derivatisation protocol for 1H NMR spectroscopic analysis of the enantiopurity of O-silyl-1,2-amino alcohols
作者:Magdalena E. Powell、Andrew M. Kelly、Steven D. Bull、Tony D. James
DOI:10.1016/j.tetlet.2008.12.013
日期:2009.2
A simple chiral derivatisation protocol for determining the enantiopurity of O-silyl-protected-1,2-amino alcohols by 1H NMR spectroscopic analysis is described, which involves their treatment with 2-formylphenylboronic acid and enantiopure (syn)-methyl-2,3-dihydroxy-3-phenylpropionate to afford mixtures of imino-boronate esters whose diastereoisomeric ratio is an accurate reflection of the enantiopurity
描述了一种简单的手性衍生方案,可通过1 H NMR光谱分析确定O-甲硅烷基保护的1,2-氨基醇的对映体纯度,涉及用2-甲酰基苯基硼酸和对映纯(syn)-甲基-2处理3-二羟基-3-苯基丙酸酯提供亚氨基-硼酸酯的混合物,其非对映异构体比率准确反映了母体氨基醇的对映体纯度。