Synthesis of two new p-tert-butylcalix[4]arene β-ketoimin derivatives for extraction of dichromate anion

被引：27

作者：

Bayrakci, Mevlut ^{[1
]}

Ertul, Seref ^{[1
]}

Sahin, Ozlem ^{[1
]}

Yilmaz, Mustafa ^{[1
]}

机构：

[1] Univ Selcuk, Dept Chem, Fac Sci & Arts, Konya, Turkey

来源：

JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY | 2009年 / 63卷 / 3-4期

关键词：

Calixarene; beta-Ketoimine; Transition metal; Alkali metal; Liquid-liquid extraction; TRANSITION-METAL CATIONS; SELECTIVE ELECTRODE; CROWN-ETHER; COMPLEXATION; CALIXARENES; CALIX<4>ARENES; CHROMIUM(VI); IONOPHORES; RECEPTORS; BINDING;

D O I：

10.1007/s10847-008-9513-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study the selective derivatization of p-tert-butylcalix[4]arene was carried out and two new p-tert-butylcalix[4]arene beta-ketoimin, 5,11,17,23-tetra-tert-butyl-25,27-bis-3-methyl-[(beta-ketoimine)-ethoxy]-26,28-dihydroxycalix[4]arene (4), and 5,11,17,23-tetra-tert-butyl-25,27-bis-3-chloro-[(beta-ketoimine)-ethoxy]-26,28-dihydroxycalix[4]arene (5) have been synthesized. In the synthesis, the lower rim of p-tert-butylcalix[4]arene was modified in order to acquire binding site for the recognition of dichromate anion. It was observed that these ionophores 4 and 5 showed high affinity towards dichromate anion. The protonated Schiff-base forms of the receptors were effective for transferring the HCr2O7 (-) anion from aqueous phase to a dichloromethane phase.

引用

页码：241 / 247

页数：7

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