Bis(benzimidazolium) axles and crown ether wheels: a versatile templating pair for the formation of [2]rotaxane molecular shuttles

被引：70

作者：

Zhu, Kelong ^{[1
]}

Vukotic, V. Nicholas ^{[1
]}

Noujeim, Nadim ^{[1
]}

Loeb, Stephen J. ^{[1
]}

机构：

[1] Univ Windsor, Dept Chem & Biochem, Windsor, ON N9B 3P4, Canada

来源：

CHEMICAL SCIENCE | 2012年 / 3卷 / 11期

基金：

加拿大自然科学与工程研究理事会;

关键词：

DRIVEN; ROTAXANES; FRAMEWORKS; CATENANES;

D O I：

10.1039/c2sc20986a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Condensation of an aldehyde appended benzimidazolium cation with a 1,2-benzenediamine in the presence of a crown ether allows formation of a second benzimidazole group and the facile synthesis of a [2]rotaxane molecular shuttle. The ease of this reaction and the versatility of the initial templating interaction between the benzimidazolium cation and crown ether allows for the preparation of [2] rotaxane molecular shuttles with crown ether macrocycles of various shapes and sizes. The synthesis and dynamic properties of a set of five [2]rotaxane molecular shuttles are described including the first examples of rotaxanes containing the larger macrocycles dibenzo[30]crown-10 (DB30C10) and bis-meta-phenylene-[26]crown-8 (BMP26C8).

引用

页码：3265 / 3271

页数：7

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