functions were prepared. Diaza-18-crown-6 containing two 4-hydroxyazobenzene (3) or two 4-hydroxy-4′-(dimethyl-amino)azobenzene (4) substituents were prepared via a one-pot Mannich reaction. Diaza-18-crown-6 containing two benzimidazole (5), two uracil (6) or two 9,10-anthraquinone (7) substituents were prepared by treating the diazacrown with the appropriate chloromethyl-containing compound. Reductive
制备了六个新的diaza-18-crown-6
配体,每个
配体包含两个具有响应功能的芳族侧臂。通过一锅曼尼希反应制备含有两个
4-羟基偶氮苯(3)或两个
4-羟基-4' -(二甲基-
氨基)
偶氮苯(4)取代基的Diaza-18-crown-6 。Diaza-18-crown-6含有两个
苯并咪唑(5),两个尿
嘧啶(6)或两个9,10-
蒽醌(7通过用合适的含
氯甲基的化合物处理二氮杂皇冠来制备取代基。使用
三乙酰氧基硼氢化钠,diaza-18-crown-6和
二茂铁甲醛的还原胺化反应制备双
二茂铁取代的diaza-18-crown-6(8)。化合物的相互作用3,5,和6用Na +,K +,
钡2+,
银+和Cu 2+通过量热滴定技术在25在
甲醇中评价°。所有三个
配体均与Ag +和Cu 2+形成更稳定的络合物(5与Ag +形成沉淀物),而不是Na +和K +。
配体5还与Ba 2+形成高度稳定的络合物。