The synthesis of a series of novel tris[(carboxy)methyl]-monoalkoxy-trihydroxycalix[4]arenes is described. Treatment of the tris[(dimethylamino)methyl]-monoalkoxy-trihydroxycalix[4]arene derivatives with iodomethane, followed by sodium cyanide as a nucleophile, gave the corresponding tris[(cyano)methyl]-monoalkoxy-trihydroxycalix[4]arenes in excellent yield, and these latter compounds were converted by hydrolysis to their tris[(carboxy)methyl]-monoalkoxy derivatives. The solid-state structures of four of the intermediate tris[(cyano)methyl]-monoalkoxy-trihydroxycalix[4]arenes show inclusion of an acetonitrile guest in the ethoxy derivative and intermolecular inclusion of the hydrophobic terminal region of the alkoxy groups for longer chain lengths. The packing of both structural types show 1-D inclusion polymer behaviour. At pH values above 5.5, all the trianionic tris[(carboxy)methyl]-monoalkoxy-trihydroxycalix[4]arene derivatives showed self-assembly to yield micellar systems, for which there was a clear odd–even effect in the observed surface tensions at the critical micelle concentrations.
                                    本文描述了一系列新颖的三[(羧基)甲基]-单烷氧基-三羟基杯[4]
芳烃的合成。用
碘甲烷处理三[(二甲基
氨基)甲基]-单烷氧基-三羟基杯[4]
芳烃衍
生物,然后用
氰化钠作为亲核试剂,可以得到相应的三[(
氰基)甲基]-单烷氧基-三羟基杯[4]
芳烃,且收率极高。这些化合物可以通过
水解转化为三[(羧基)甲基]-单烷氧基衍
生物。四种中间体三[(
氰基)甲基]-单烷氧基-三羟基杯[4]
芳烃的固态结构显示,乙氧基衍
生物中包含
乙腈客体,而长链烷氧基的疏
水末端区域则存在分子间包合。两种结构类型的堆积都表现出一维包合聚合行为。在pH值高于5.5时,所有三阴离子三[(羧基)甲基]-单烷氧基-三羟基杯[4]
芳烃衍
生物都会自组装形成胶束体系,在临界胶束浓度下,观察到的表面张力存在明显的奇偶效应。