Kumar, Subodh ; Kaur, Navneet ; Harjit Singh, (1996) Synthetic ionophores part 14: effect of pyridine and thioether ligating units on Ag+ selectivity in 18-membered diamide-diester macrocycles Tetrahedron, 52 (42). pp. 13483-13492. ISSN 0040-4020
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/004040...
Related URL: http://dx.doi.org/10.1016/0040-4020(96)00803-4
Abstract
The eight new diamide - diester macrocycles 8-15 possessing pyridine/thioether/ether as ligating units have been prepared by dehydrochlorination of appropriate diacid dichlorides and diols (4 - 7) obtained by aminolysis of diethyl pyridine-2,6-dicarboxylate / diethyl thiodiglycolate with aminoalcohols. Amongst these macrocycles, the substituted ones elaborate mixtures of three dimensional cisoid / transoid configurations and the unsubstituted ones are planar. Macrocycles 9, 10, 11, 13 have high order of binding preference for Ag+ and its highest extraction and transport selectivities are shown by 13 and 10, respectively.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 14669 |
| Deposited On: | 12 Nov 2010 13:51 |
| Last Modified: | 02 Jun 2011 11:49 |
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