26,27,28-tris(cyanomethoxy)calix[4]arene (cone conformer) are reported. The calixarenes are found to be conformationally mobile when heated in DMSO, favouring the partial-cone conformer at equilibrium. The tris-substituted cyanomethoxy derivative was found to assume the partial-cone conformation in the solid state. Attempts to convert nitrile groups to tetrazole moieties in derivatives containing both
5,11,17,23-四叔丁基-25,26,27,28-四(
氰基甲氧基)杯[4]
芳烃(部分圆锥构象异构体)的合成和单晶X射线结构测定,5 ,11,17,23 -四-叔丁基- 25,27 -二(diethylcarbamoylmethoxy)-26,28 -二(
氰基甲氧基)杯[4]
芳烃(锥部分锥形构象异构体),5,11,17, 23-四叔丁基-25,26,27-三(
氰基甲氧基)-28-羟基杯[4]
芳烃和5,11,17,23-四叔报道了丁基-25-
二乙基氨基甲酰基甲氧基-26,27,28-三(
氰基甲氧基)杯[4]
芳烃(锥型构象异构体)。发现杯
芳烃在
DMSO中加热时在构象上可移动,在平衡时有利于部分圆锥形构象异构体。发现三取代的
氰基甲氧基衍
生物在固态下呈现部分圆锥构象。在含有酰胺和腈基团的衍
生物中尝试将腈基团转化成
四唑部分是不成功的。