Dynamic hemicarcerands and hemicarceplexes.
作者信息
Ro S, Rowan S J, Pease A R, Cram D J, Stoddart J F
机构信息
Department of Chemistry and Biochemistry, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095-1569, USA.
出版信息
Org Lett. 2000 Aug 10;2(16):2411-4. doi: 10.1021/ol005962p.
PMID:10956509
Abstract
The reversible nature of the imine bond formation in CDCl(3) solution has been exploited to exchange substituted for unsubstituted m-phenylenediamine (MPD) units in hemicarcerand octaimines. Moreover, acid-catalyzed imine exchange 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)&crcldt;Fc dissolved in CDCl(3) to give the hemicarcerand C(2)B(4) when excess of both MPD and trifluoroacetic acid are present.
摘要
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