Synthesis of di-substituted calix[4]arene-based receptors for extraction of chromate and arsenate anions
作者:Mevlüt Bayrakcı、Şeref Ertul、Mustafa Yilmaz
DOI:10.1016/j.tet.2009.07.062
日期:2009.9
The article describes the synthesis of a family of novel calix[4]arene ionophores, 25,27-bis-(2-aminomethylpyridine-propoxy)-26,28-dihydroxycalix[4]arene (5a), 25,27-bis-(3-aminomethylpyridine-propoxy)-26,28-dihydroxycalix[4]arene (5b) and two chromogenic calix[4]arenes, 5,17-dinitro-25,27-bis-(2-aminomethylpyridine-propoxy)-26,28-dihydroxycalix[4]arene (5c), 5,17-dinitro-25,27-bis-(3-aminomethylpyridine-propoxy)-26
该文章介绍了一系列新型杯[4]芳烃离子载体,25,27-双-(2-氨基甲基吡啶-丙氧基)-26,28-二羟基杯[4]芳烃(5a),25,27-双- (3-氨基甲基吡啶-丙氧基)-26,28-二羟基杯[4]芳烃(5b)和两个发色杯[4]芳烃,5,17-二硝基-25,27-双-(2-氨基甲基吡啶-丙氧基)-26带有吡啶鎓单元的,28-二羟基杯[4]芳烃(5c),5,17-二硝基-25,27-双-(3-氨基甲基吡啶-丙氧基)-26,28-二羟基杯[4]芳烃(5d)。在合成中,p - tert的上下边缘修饰丁基丁基杯[4]芳烃,以获得用于识别砷酸根和重铬酸根阴离子的结合位点。已经观察到,离子载体的质子化烷基铵形式显示出对重铬酸根和砷酸根阴离子的高亲和力。