| Literature DB >> 10825952 |
W S Bryant1, J W Jones, P E Mason, I Guzei, A L Rheingold, F R Fronczek, D S Nagvekar, H W Gibson.
Abstract
[formula: see text] Inspired by folded, nonpseudorotaxane complexes of bis(m-phenylene)-32-crown-10 systems, we synthesized a new bicyclic crown ether containing two 1,3,5-phenylene units linked by three tetra(ethyleneoxy) units. The new cryptand forms a "pseudorotaxane-like" inclusion complex with N,N'-dimethyl-4,4'-bipyridinium bis(hexafluorophosphate) with association constant Ka = 6.1 x 10(4) M-1, 100-fold greater than that of an analogous simple crown ether.Entities:
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Year: 1999 PMID： 10825952 DOI： 10.1021/ol990780k
Source DB: PubMed Journal: Org Lett ISSN： 1523-7052 Impact factor: 6.005