Synthesizing [2]Rotaxanes and [2]Catenanes through Na+‑Templated Clipping of Macrocycles around Oligo(ethylene glycol) Units

Di-, tri-, and tetra­(ethylene glycol) units in both dumbbell-shaped and macrocyclic molecules can be used as primary recognition units for the clipping of macrocycles in the presence of templating Na+ ions to form corresponding [2]­rotaxanes and [2]­catenanes. One such tri­(ethylene glycol)-contain...

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Bibliographic Details
Published in:Organic letters 2015-05, Vol.17 (9), p.2158-2161
Main Authors: Wu, Yi-Wei, Chen, Pei-Nung, Chang, Chia-Fong, Lai, Chien-Chen, Chiu, Sheng-Hsien
Format: Article
Language:English
Subjects:
Catenanes - chemical synthesis
Catenanes - chemistry
Ethylene Glycol - chemistry
Ions
Macrocyclic Compounds - chemistry
Magnetic Resonance Spectroscopy
Molecular Structure
Rotaxanes - chemical synthesis
Rotaxanes - chemistry
Sodium - chemistry
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Summary:Di-, tri-, and tetra­(ethylene glycol) units in both dumbbell-shaped and macrocyclic molecules can be used as primary recognition units for the clipping of macrocycles in the presence of templating Na+ ions to form corresponding [2]­rotaxanes and [2]­catenanes. One such tri­(ethylene glycol)-containing [2]­catenane behaves as a Na+ ion-controllable molecular switch.
ISSN:1523-7060
1523-7052
DOI:10.1021/acs.orglett.5b00748