Construction of Crown Ether-Stoppering [3]Rotaxanes Based on <i>N</i>
-Hetero Crown Ether Host
作者:Xie Han、Ziyong Li、Zhiqiang Xu、Zhiyong Zhao、Sheng Hua Liu、Jun Yin
DOI:10.1002/cjoc.201600878
日期:2017.7
Crown ether usually plays the role of macrocyclic host in supramolecular chemistry, but here the crown ether is also utilized as the stoppers in rotaxanes. In this work, we designed and synthesized two [3]rotaxanes containing four crown ether components by using an approach of template‐directed clipping reaction, of which, two crown ether components were employed as the macrocyclic hosts to assemble
冠醚通常在超分子化学中起大环主体的作用,但在此冠醚还用作轮烷的塞子。在这项工作中,我们设计和合成了两个[3]轮烷烷,其中包含四个冠醚组分,采用模板导向的限位反应方法,其中两个冠醚组分被用作大环主体以组装机械互锁的骨架,而另一个位于铵模板两端的两个冠醚单元充当轮烷的封端基团。通过1 H NMR监测了它们的自组装过程,获得了[3]轮烷的单晶结构之一。