Calixhydroquinones: a novel access to conformationally restricted, meta-substituted calixarenes †
作者:Mark Mascal、Ralf Warmuth、Russell T. Naven、Ross A. Edwards、Michael B. Hursthouse、David E. Hibbs
DOI:10.1039/a906442g
日期:——
described. These macrocycles are activated towards meta substitution, and reaction with bromine gives the first examples of persubstituted, phenol-derived calixarenes. The effect of meta substitution on calixarene mobility is demonstrated by the fixation of an otherwise mobile calix[4] system in the partial cone conformer, and the slowing of the ring inversion rate in calix[8]arenes.
Synthesis, solid state structures and interfacial properties of new para-phosphonato-O-alkoxy-calix[8]arene derivatives
作者:Florent Perret、Kinga Suwinska、Bernard Bertino Ghera、H?l?ne Parrot-Lopez、Anthony W. Coleman
DOI:10.1039/b616480n
日期:——
The synthesis of six para-phosphonato-alkoxy-calix[8]arene derivatives are described. Here, a total of 24 intermediates have been isolated, and X-ray structures of the octabromo-octamethoxy-calix[8]arene and octabromo-octabutoxy-calix[8]arene have been resolved. The interfacial properties of the para-phosphonato-alkoxy-calix[8]arene derivatives and their di-iso-propoxy-protected analogues have been determined.
本文介绍了六种对位膦酸烷氧基萼[8]炔衍生物的合成。在此共分离出 24 个中间体,并解析了八溴-八甲氧基-萼[8]炔和八溴-八丁氧基-萼[8]炔的 X 射线结构。还测定了对位膦酸烷氧基萼片[8]炔衍生物及其二异丙氧基保护类似物的界面特性。