Novel chiral imidazole cyclophane receptors: synthesis and enantioselective recognition for amino acid derivatives

被引:82
|
作者
You, JS
Yu, XQ
Zhang, GL
Xiang, QX
Lan, JB
Xie, RG [1 ]
机构
[1] Sichuan Univ, Dept Chem, Chengdu 610064, Peoples R China
[2] Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China
关键词
D O I
10.1039/b103325p
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Novel chiral imidazole cyclophane receptors were synthesized by highly selective N-alkylation of the imidazolyl 1N-position of the bridged histidine diester 2 with the dibromide in the presence of NaH; these receptors exhibit good chiral recognition toward the enantiomers Of L- and D-amino acid derivatives (up to K-D/K-L = 3.52, Delta DeltaG(0) = -3.11 kJ mol(-1)) in CHCl3 at 25.0 degreesC.
引用
收藏
页码:1816 / 1817
页数:2
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