Molecular Recognition of Alkylammonium, N-Methylpyridinium Cations and Native L-α-Amino Acids by Water Soluble Penta- and Tetra-Sulfonatocalixarenes

Title: Molecular Recognition of Alkylammonium, N-Methylpyridinium Cations and Native L-α-Amino Acids by Water Soluble Penta- and Tetra-Sulfonatocalixarenes

Volume: 6 Issue: 8

Author(s): Carmela Bonaccorso, Salvatore Gentile, Fabio Giuseppe Gulino and Domenico Sciotto

Affiliation:

Keywords: Calixarenes, water-soluble, molecular recognition, H NMR titration

Abstract: The inclusion of ethylammonium, N-methylpyridinium cations and native L-α-amino acids by the watersoluble pentasulfonatocalix[5]arene 1 has been investigated at neutral pH by 1H NMR. The complexation behavior has been compared with that of the homologous tetrasulfonatocalix[4]arene 2. Unlike host 2, host 1 exhibits high selectivity in the recognition of the investigated guests.

Cite this article as:

Bonaccorso Carmela, Gentile Salvatore, Gulino Giuseppe Fabio and Sciotto Domenico, Molecular Recognition of Alkylammonium, N-Methylpyridinium Cations and Native L-α-Amino Acids by Water Soluble Penta- and Tetra-Sulfonatocalixarenes, Letters in Organic Chemistry 2009; 6 (8) . https://dx.doi.org/10.2174/157017809790442880