University of Cagliari
Anion recognition properties of pyridine-2,6-dicarboxamide and isophthalamide derivatives containing L-tryptophan moieties.
CALTAGIRONE, CLAUDIA;ISAIA, FRANCESCO;LIPPOLIS, VITO
2012-01-01
Abstract
L-Tryptophan containing anion receptors 1 and 2 have shown interesting features. Receptor 1 behaves as a hetero-ditopic dicompartimental receptor for fluoride and chloride with a certain selectivity for fluoride as supported by 1H NMR titrations and molecular modeling, while receptor 2 forms only 1:1 complexes. Moreover, receptor 1 reveals a certain affinity towards the L enantiomers of amino acids alanine and serine.
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