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Demonstrates new macrocyclic compounds with adaptable structures, suggesting potential applications in supramolecular chemistry.
Our cyclicurilarene receptor family has been extended by coupling of 2,4-dimethylglycoluril with bis(bromomethyl)-substituted dimethoxybenzene through nucleophilic substitution, yielding macrocycles with conformational flexibility that can adapt to different-sized substrates, resembling bambusurils. Anti/syn-configurations of the two glycoluril units in “Ding”-shaped cyclicurilarenes induce distinct acetonitrile positions in the solid state, and inward-oriented glycoluril forms intracavity hydrogen bonds with alanine derivative in chloroform. Four- and six-membered cyclicurilarenes featuring alternating dimethoxybenzene and glycoluril units were synthesized.
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Wen et al. (2026) studied this question.
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