Selective recognition of by a cholestane-imidazole-zinc ensemble

Selective recognition of by a cholestane-imidazole-zinc ensemble

A new facile amphiphile cholestane-based zinc complex 4 containing a 3-aminopropylimidazole moiety at the 3 alpha and 7 alpha positions of cholestane was designed and synthesized. Recognition selectivity of the new receptor 4 with various anions was assessed by 1H NMR titration. Dihydrogen phosphate...

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Veröffentlicht in:Tetrahedron letters 2012-05, Vol.53 (21), p.2627-2631
Hauptverfasser: Jadhav, Jyoti Ramesh, Ahmad, Wasi, Kim, Hong-Seok
Format: Artikel
Sprache:eng
Schlagworte:
Affinity
Anions
Binding
Phosphates
Recognition
Tetrahedrons
Titration
Zinc
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Zusammenfassung:A new facile amphiphile cholestane-based zinc complex 4 containing a 3-aminopropylimidazole moiety at the 3 alpha and 7 alpha positions of cholestane was designed and synthesized. Recognition selectivity of the new receptor 4 with various anions was assessed by 1H NMR titration. Dihydrogen phosphate showed the highest binding affinity among all the tested anions (Ka = 4.4 105 M-1).
ISSN:0040-4039
DOI:10.1016/j.tetlet.2012.03.047