首页> 外文期刊>Chemistry: A European journal >Anion-templated calix[4]arene-based pseudorotaxanes and catenanes
【24h】

Anion-templated calix[4]arene-based pseudorotaxanes and catenanes

机译:阴离子模板杯[4]芳烃基假轮烷和链烷烃

获取原文
获取原文并翻译 | 示例
           

摘要

We present the rational design and anion-binding properties of the first anion-templated pseudorotaxanes and catenanes in which the "wheel" component is provided by a calix[4]arene macrobicyclic unit. The designs and syntheses of two new calix[4]arene macrobicycles, 2 and 3, are presented, and the abilities of these new species both to bind anions and to undergo anion-dependent pseudorotaxane formation are demonstrated. Furthermore, it is shown that performing ring-closing metathesis reactions on some of these pseudorotaxane assemblies gives novel catenane species 14 and 15, in which the yield of interlocked molecule obtained is critically dependent on the presence of a suitable anion template, namely, chloride. Exchange of the chloride anion in catenane 14a for hexafluorophosphate gives catenane 14d, which contains a unique anion-binding domain defined by the permanently interlocked hydrogen-bond-donating calix[4]arene macrobicycle and pyridinium macrocycle fragments. The anion-binding properties of this domain are presented, and shown to differ from non-interlocked components.
机译:我们介绍了第一个阴离子模板的假轮烷和链烷的合理设计和阴离子结合性能,其中“车轮”成分是由杯[4]芳烃大双环单元提供的。介绍了两个新的杯[4]芳烃大自行车2和3的设计和合成,并证明了这些新物种既能结合阴离子又能进行阴离子依赖性假轮烷的形成。此外,显示出在这些假轮烷组装体中的一些上进行闭环易位反应给出了新的链烷烃种类14和15,其中获得的互锁分子的产率关键取决于合适的阴离子模板即氯的存在。链烷烃14a中的氯离子与六氟磷酸根的交换得到链烷烃14d,其包含一个独特的阴离子结合结构域,该结构域由永久性互锁的氢键供体杯[4]芳烃大环和吡啶鎓大环片段定义。呈现了该结构域的阴离子结合特性,并显示出与非互锁组件不同的特性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号