Synthesis, 1H-NMR conformational analysis and complexation studies of two di-imidazolyl acetamido p-tert-butylcalix[4]arenes

被引：0
作者：
Najah Cheriaa
Rym Abidi
Jacques Vicens
机构：
[1] Institut Pluridisciplinaire Hubert Curien,Laboratoire de conception moléculaire, associé au CNRS
[2] Ecole Chimie Polymères Matériaux,Laboratoire de Chimie des Interactions Moléculaires Spécifiques
[3] Faculté des Sciences de Bizerte,undefined
来源：
Journal of Inclusion Phenomena and Macrocyclic Chemistry | 2008年 / 62卷
关键词：
Calix[4]arenes; Di-amido; Imidazolyl; Cation complexation;
D O I：
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学科分类号：
摘要：
The synthesis of a new di-imidazolyl-di-methoxy acetamido p-tert-butylcalix[4]arene 4 is reported. 4 has been prepared by reacting the corresponding di-methyl ester di-methoxy derivative with histamine in 1:1 mixture of methanol: toluene. The binding properties of 4 towards alkali, alkaline earth, transition (Zn2+, Co2+) and heavy (Pb2+, Cd2+) metals have been investigated along with the complexes stoichiometries. The 1H-NMR spectra of complexes show the location of cations in receptor 4. Partial cone conformation is observed only with strontium and calcium whereas the cone conformation is detected with most of the cations. Comparison of the complexation results with those obtained for di-imidazolyl acetamido p-tert-butylcalix[4]arene 3 missing the methyl groups is also reported.
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页码：223 / 229
页数：6
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