Anion-templated assembly of [2]rotaxanes
Organic & Biomolecular Chemistry Pub Date: 2006-03-10 DOI: 10.1039/B518178J
Abstract
Anion templation is used to develop a general method for rotaxane synthesis. The anion-templated synthesis of three new [2]rotaxanes containing positively charged pyridinium axles and neutral isophthalamide macrocyclic components is described. The incorporation of electron withdrawing substituents, such as the nitro group, into the 5-position of an isophthalamide bis-vinyl acyclic precursor results in a significant improvement in [2]rotaxane assembly yields. Rotaxane anion binding strengths are also enhanced whilst the rotaxane's unique interlocked binding domain ensures selectivity for chloride – the templating anion – is maintained.
![Graphical abstract: Anion-templated assembly of [2]rotaxanes](http://scimg.chem960.com/usr/1/B518178J.jpg)
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Journal Name：Organic & Biomolecular Chemistry
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CAS no.: 89640-58-4
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