Helicates with Ether‐Substituted Catechol Esters as Ligands
Abstract
Mono‐ or biscatechol esters with ether‐type substituents or spacers form either triple lithium bridged dimeric helicates or triple stranded helicates with the ability to bind three lithium cations in their interior. Hierarchical helicates with ether or thioether substituents show in solution a monomer‐dimer equilibrium which is independent of the heteroatom in the ester substituent. However, dimerization constants are significantly lower than for corresponding alkyl derivatives. Dinuclear helicates with oligoether spacers are well obtained in the presence of lithium cations. Upon removal of the cations the helicates expand and successive addition of LiCl results in compression again.
Main Authors
Format
Articles
Research article
Published
2020
Series
Subjects
Publication in research information system
Publisher
Wiley
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202009215909Use this for linking
Review status
Peer reviewed
ISSN
1434-193X
DOI
https://doi.org/10.1002/ejoc.202000843
Language
English
Published in
European Journal of Organic Chemistry
Citation
- Mevissen, C., Kwamen, C., Himmel, L., Chen, X., Brückner, M., Huda, S., Göb, C., Jenniches, J., Oppel, I., Ward, J., Rissanen, K., & Albrecht, M. (2020). Helicates with Ether‐Substituted Catechol Esters as Ligands. European Journal of Organic Chemistry, 2020(32), 5161-5172. https://doi.org/10.1002/ejoc.202000843
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Additional information about funding
X. C. acknowledges the support by the Chinese Scholarship Council (CSC).
Copyright© 2020 the Authors