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Aqueous Assembly of Zwitterionic Daisy Chains
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 4529446
Author(s) Aeschi, Yves; Drayss-Orth, Sylvie; Valasek, Michal; Haeussinger, Daniel; Mayor, Marcel
Author(s) at UniBasel Mayor, Marcel
Drayss-Orth, Sylvie Carolin
Aeschi, Yves
Häussinger, Daniel
Year 2019
Title Aqueous Assembly of Zwitterionic Daisy Chains
Journal Chemistry - A European Journal
Volume 25
Number 1
Pages / Article-Number 285-295
Keywords click-chemistry, cyclophane, daisy chain, hydrophobic complexation, rotaxane
Abstract The synthesis and characterization of zwitterionic molecular [c2]‐ and [a2]‐daisy chains are described, relying on recognition of a positively charged cyclophane and a negatively charged oligo(phenylene‐ethynylene) (OPE) rod in aqueous medium. For this purpose, syntheses of an acetylene‐functionalized macrocyclic receptor and a water‐soluble OPE‐rod as the guest component are presented, from which a heteroditopic daisy chain monomer was prepared. This monomer aggregated strongly in water/methanol 4:1 and formed molecular daisy chains, which were isolated as interlocked species from a stoppering reaction at 1 mm concentration. The cyclic dimer [c2] was the main product with an isolated yield of 30 % and consisted of a mixture of diastereomers, as evidenced by 1H NMR spectroscopy.
Publisher Wiley
ISSN/ISBN 0947-6539 ; 1521-3765
URL https://onlinelibrary.wiley.com/doi/abs/10.1002/chem.201803944
edoc-URL https://edoc.unibas.ch/75518/
Full Text on edoc Available
Digital Object Identifier DOI 10.1002/chem.201803944
PubMed ID http://www.ncbi.nlm.nih.gov/pubmed/30198159
ISI-Number 000454705500034
Document type (ISI) Journal Article
 
   

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