Anion recognition properties of pyridine-2,6-dicarboxamide and isophthalamide derivatives containing L-tryptophan moieties

作者：Caltagirone Claudia^*; Bazzicalupi Carla; Bencini Andrea; Isaia Francesco; Garau Alessandra; Lippolis Vito

来源：Supramolecular Chemistry, 2012, 24(2): 95-100.

DOI：10.1080/10610278.2011.628391

• anion recognition
• ditopic receptors
• enantiomeric discrimination

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 H-1 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.

• 出版日期2012