Abstract
[reaction: see text] p-tert-Butylcalix[5]arenes in a fixed cone conformation, endowed with a urea functionality at the upper rim, behave as remarkably efficient abiotic receptors of omega-amino acids and biogenic amines, which are bound with one end of the chain within the pi-basic cavity (primary recognition site) and the other grasped by the secondary hydrogen bonding donor/acceptor binding site.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Amino Acids / chemistry*
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Binding Sites
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Biogenic Amines / chemistry*
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Calixarenes
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Hydrogen Bonding
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Macromolecular Substances*
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Magnetic Resonance Spectroscopy
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Molecular Structure
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Quaternary Ammonium Compounds
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Urea / chemistry
Substances
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Amino Acids
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Biogenic Amines
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Macromolecular Substances
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Quaternary Ammonium Compounds
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Calixarenes
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Urea