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  • Title: One-pot formation of large macrocycles with modifiable peripheries and internal cavities.
    Author: Ferguson JS, Yamato K, Liu R, He L, Zeng XC, Gong B.
    Journal: Angew Chem Int Ed Engl; 2009; 48(17):3150-4. PubMed ID: 19322868.
    Abstract:
    The shape of things to come: Aromatic oligohydrazide macrocycles with planar backbones enforced by three-center hydrogen bonds are formed in high yield from monomeric diacid chlorides and dihydrazides. Macrocycles consisting of six meta-linked pyridine and benzene residues have an internal cavity of about 10 A diameter, while those with alternating meta- and para-linked benzene residues are larger and contain multiple convergent sites (see picture).
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