A Simple Protocol for NMR Analysis of the Enantiomeric Purity of Chiral Hydroxylamines

作者:Tickell David A; Mahon Mary F; Bull Steven D*; James Tony D
来源:Organic Letters, 2013, 15(4): 860-863.
DOI:10.1021/ol303566k

摘要

A practically simple three-component chiral derivatization protocol for determining the enantiopurity of chiral hydroxylamines by H-1 NMR spectroscopic analysis is described, involving their treatment with 2-formylphenylboronic acid and enantiopure BINOL to afford a mixture of diastereomeric nitrono-boronate esters whose ratio is an accurate reflection of the enantiopurity of the parent hydroxylamine.

  • 出版日期2013-2-15