Angewandte Chemie International Edition
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Communication
Facile Synthesis and Solid-State Structure of a Benzylic Amide [2]Catenane†
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We thank Dr. J. P. Smart for useful discussions and advice, and S. Davey, M. Bolgar, and Prof. S. Gaskell for mass spectral data. This work was carried out through the support of a British Gas Scholarship award (to A. G. J).
Abstract

The condensation of eight molecules in one step provides 1, the smallest [2]catenane to date, in 20% yield. The cavity in one of the identical macrocycles of the catenane has dimensions of 4 × 6 Å. The structure of 1 is earmarked by a variety of hydrogen bonds and tessellating stacks of aromatic units.