The rapid preparation of a pyridine-N-oxide containing [2]catenane is described. The [2]catenane was characterized by NMR spectroscopy, mass spectrometry and X-ray single crystal structure determination. 1H NMR titration experiments reveal the [2]catenane may be reversibly protonated, as well as an ability to bind lithium cations more strongly than sodium cations.
S. R. Barlow, N. R. Halcovitch and N. H. Evans, Org. Biomol. Chem., 2024, 22, 3001 DOI: 10.1039/D4OB00176A
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