Enantioselective CD analysis of amino acids based on chiral amplification with a stereodynamic probe

被引:26
作者
Ghosn, Marwan W. [1 ]
Wolf, Christian [1 ]
机构
[1] Georgetown Univ, Dept Chem, Washington, DC 20057 USA
关键词
Amino acids; Sensing; Chiral amplification; Circular dichroism; Dynamic stereochemistry; INDICATOR DISPLACEMENT ASSAYS; INDUCED AXIAL CHIRALITY; ENANTIOMERIC EXCESS; FLUORESCENT RECOGNITION; ABSOLUTE-CONFIGURATION; COPPER(II) COMPLEX; CIRCULAR-DICHROISM; CARBOXYLIC-ACIDS; BIPHENYL CORE; RESIDUE BIP;
D O I
10.1016/j.tet.2010.04.030
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The condensation between stereolabile 1,8-bis(3'-formy1-4'-hydroxyphenyl)naphthalene, 1, and two amino acid molecules results in the formation of chiral diimines exhibiting strong CD signals. This reaction has been used to develop a chiroptical sensing method for the determination of the absolute configuration and enantiomeric composition of unprotected amino acids. This sensing approach is based on distinctive chiral amplification due to central-to-axial chirality induction within the diimine scaffold formed and does not require the use of an enantiopure ligand or metal complex. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3989 / 3994
页数:6
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