Synthesis and cation binding properties of new bile acid-based crown ethers

被引：16
|
作者：
Maitra, U [1 ]
D'Souza, LJ [1 ]
Kumar, PV [1 ]
机构：
[1] Indian Inst Sci, Dept Organ Chem, Bangalore 560012, Karnataka, India
来源：
SUPRAMOLECULAR CHEMISTRY | 1998年 / 10卷 / 02期
关键词：
crown ether; bile acid; cation binding;
D O I：
10.1080/10610279808055400
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A series of bile acid-based crown ethers (7a-c,12 and 13) were easily constructed from readily available precursors. Measurement of association constants (K-a) with alkali metal picrates in CHCl3 showed that azacrown ethers 7a-c and Chola-Cuowns 12 and 13 show greater binding towards Rb+ and K+. The presence of the aromatic moieties showed subtle changes in the binding properties. Insight II minimized structures show very different conformations of aromatic units in 7a-b and 13.
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页码：97 / 106
页数：10
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