New Chiral Derivatizing Agents: Convenient Determination of Absolute Configurations of Free Amino Acids by <sup>1</sup>H NMR
作者:Michio Kurosu、Kai Li
DOI:10.1021/ol8028719
日期:2009.2.19
The chiral carbonate reagents 5 allow for the direct and unambiguous determination of the absolute configurations of a wide range of free amino acids using 1H NMR. By using a ∼3:1 mixture of (S)-5 and (R)-5, absolute configurations of the corresponding carbamates are determined by only analyzing the nitrogen protons.
手性碳酸酯试剂5允许使用1 H NMR直接和明确地确定各种游离氨基酸的绝对构型。通过使用〜(S)-5和(R)-5的〜3:1混合物,仅通过分析氮质子即可确定相应氨基甲酸酯的绝对构型。