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Issue 9, 2016
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Calix[4]arenes containing a ureido functionality on the lower rim as highly efficient receptors for anion recognition

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Abstract

The introduction of nosyl moieties onto the lower rim of the calix[4]arene skeleton led to the formation of compounds immobilised in cone conformations. Subsequent reduction of the nitro group and reaction with aryl isocyanates enabled the construction of new calixarene-based ligands for anion recognition. As proven by NMR and UV/vis titration experiments, diaryl urea moieties with electron-withdrawing substituents on both sides represent very efficient tools for the complexation of selected anions (AcO, BzO, H2PO4) even in highly competitive solvents such as DMSO-d6.

Graphical abstract: Calix[4]arenes containing a ureido functionality on the lower rim as highly efficient receptors for anion recognition

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Publication details

The article was received on 22 Apr 2016, accepted on 25 Jul 2016 and first published on 26 Jul 2016


Article type: Paper
DOI: 10.1039/C6NJ01271J
Citation: New J. Chem., 2016,40, 7935-7942
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    Calix[4]arenes containing a ureido functionality on the lower rim as highly efficient receptors for anion recognition

    T. Klejch, J. Slavíček, O. Hudeček, V. Eigner, N. A. Gutierrez, P. Cuřínová and P. Lhoták, New J. Chem., 2016, 40, 7935
    DOI: 10.1039/C6NJ01271J

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