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Synfacts 2008(1): 0044-0044  
DOI: 10.1055/s-2007-992402
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart · New York

Switching Rotaxanation

Contributor(s): Timothy M. Swager, Jeewoo Lim
C. Yang, Y.-H. Ko, N. Selvapalam, Y. Origane, T. Mori, T. Wada, K. Kim*, Y. Inoue*
ICORP Entropy Control Project, JST, Toyonaka and Osaka University, Suita, Japan; Pohang University of Science and Technology, Korea
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Publication History

Publication Date:
18 December 2007 (online)

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Significance

A twin-axial pseudorotaxane system (a dynamic complex where the bound and unbound forms of the wheel and the axle are in equilibrium) in which one of the two axles can be moved in and out of the cyclodextrin ‘wheel’ is reported. While it is known that more than one guest can be simultaneously introduced into γ-cyclodextrin, this paper is the first report in which single- and double-axial pseudorotaxanes are chemically interconverted.