Synthesis 2002(9): 1256-1260
DOI: 10.1055/s-2002-32536
© Georg Thieme Verlag Stuttgart · New York

Synthesis and Characterization of Annulene-Fused Pseudorotaxanes

Joshua J. Paka,, Timothy J. R. Weakleya, Michael M. Haley*a, Danny Y. K. Laub, J. Fraser Stoddartb
a Department of Chemistry, University of Oregon, Eugene, OR 97403-1253 USA
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b Department of Chemistry, University of California - Los Angeles, 405 Hilgard Avenue, Los Angeles, CA 90095 USA
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Further Information

Publication History

Received 1 April 2002
Publication Date:
28 June 2002 (online)


A 24-crown-8 ether-fused dehydrobenzo[18]annulene has been prepared via a stepwise Pd/Cu-mediated strategy. This annulene-crown ether hybrid forms a pseudorotaxane complex in CD2Cl2 with dibenzylammonium hexafluorophosphate when they are combined in a 1:1 ratio, as indicated by 1H NMR spectroscopy and mass spectrometry.