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Synfacts 2008(10): 1052-1052  
DOI: 10.1055/s-2008-1078045
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

A [2]Catenane with Speed Bumps

Contributor(s): Timothy M. Swager, Jan M. Schnorr
A. Coskun, S. Saha, I. Aprahamian, J. F. Stoddart*
University of California, Los Angeles and Northwestern University, Evanston, USA
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Publication History

Publication Date:
22 September 2008 (online)

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Significance

The authors synthesized a [2]catenane composed of a π-electron-rich crown-ether derivative interlocked with a macrocycle containing a naphthalene diimide and a bipyridinium moiety 2. The closure of this macrocycle was achieved by copper(I)-catalyzed azide-alkyne cyclo­addition.