Meso-piperidine calix[4]pyrrole: synthesis, structure and ion binding studies

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• 作者：Ying-Chun He ; Ji-Gang Pan ; ^{panjigang_sxu@163.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Calix[4]pyrrole ; Synthesis ; Macrocycle ; Anion ; Crystal structure
• 刊名：Tetrahedron
• 出版年：2015
• 出版时间：21 October 2015
• 年：2015
• 卷：71
• 期：42
• 页码：8208-8212
• 全文大小：1074 K

文摘

We report the synthesis, structure and preliminary solution phase ion binding properties of the calix[4]pyrrole 3a–c. Calix[4]pyrrole 3a and 3b, the first to be prepared via one-pot reaction, were obtained by reacting the ketone 7 with pyrrole in the presence of an acid catalyst. On the basis of ¹H NMR spectroscopic analyses and the titrations of UV spectrophotometry, it was concluded that compound 3a possesses significantly enhanced selectivity for fluoride anion in chloroform, and formes 1:1 (ligand: anion) complexes with fluoride and chloride anions.