A new type of strongly binding and chiral spherand is reported, which js composed of a phenanthroline and four alkoxy benzene units incorporated in 18-membered rings whose binding free energies and 1H NMR spectra suggest the systems to be preorganized for complexation.
J. K. Judice, S. J. Keipert, C. B. Knobler and D. J. Cram, J. Chem. Soc., Chem. Commun., 1993, 1325 DOI: 10.1039/C39930001325
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