Dynamic hemicarcerands and hemicarceplexes

Authors
Ro, S Rowan, SJ Pease, AR Cram, DJ Stoddart, JF
Citation
S. Ro et al., Dynamic hemicarcerands and hemicarceplexes, ORG LETT, 2(16), 2000, pp. 2411-2414
Citations number
35
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANIC LETTERS
ISSN journal
15237060 → ACNP
Volume
2
Issue
16
Year of publication
2000
Pages
2411 - 2414
Database
ISI
SICI code
1523-7060(20000810)2:16<2411:DHAH>2.0.ZU;2-6
Abstract
[GRAPHICS] The reversible nature of the imine bond formation in CDCl3 solution has bee n exploited to exchange substituted for unsubstituted m-phenylenediamine (M PD) units in hemicarcerand octaimines. Moreover, acid-catalyzed imine excha nge has been shown to provide a novel mechanism whereby ferrocene (Fc) can be released as an entrapped guest from the hemicarceplex C(2)B(4)circle dot Fc dissolved in CDCl3 to give the hemicarcerand C2B4 when excess of both M PD and trifluoroacetic acid are present.