A rotaxane-like complex with controlled-release characteristics

Authors
Chiu, SH Rowan, SJ Cantrill, SJ Glink, PT Garrell, RL Stoddart, JF
Citation
Sh. Chiu et al., A rotaxane-like complex with controlled-release characteristics, ORG LETT, 2(23), 2000, pp. 3631-3634
Citations number
30
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANIC LETTERS
ISSN journal
15237060 → ACNP
Volume
2
Issue
23
Year of publication
2000
Pages
3631 - 3634
Database
ISI
SICI code
1523-7060(20001116)2:23<3631:ARCWCC>2.0.ZU;2-R
Abstract
[GRAPHICS] A rotaxane-like complex, based on a dumbbell-shaped component containing an NH2+ recognition site for a [25]crown-8 ring component and a slippage stop per in the form of a p(tert-butyl)phenyl group, has been synthesized by a " threading-followed-by-stoppering" approach. The half-life for dissociation of this complex, which is very sensitive to its environment, can be varied from minutes to months by changing the temperature and the polarity of the solvent.