Molecular recognition of alkylammonium, n-methylpyridinium cations and native L-α-Amino acids by water soluble penta- and tetra- sulfonatocalixarenes

Carmela Bonaccorso; Salvatore Gentile; Fabio Giuseppe Gulino; Domenico Sciotto

doi:10.2174/157017809790442880

Molecular recognition of alkylammonium, n-methylpyridinium cations and native L-α-Amino acids by water soluble penta- and tetra- sulfonatocalixarenes

Carmela Bonaccorso, Salvatore Gentile, Fabio Giuseppe Gulino, Domenico Sciotto

www.irccs.oasi.en.it

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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.

Original language	English
Pages (from-to)	598-603
Number of pages	6
Journal	Letters in Organic Chemistry
Volume	6
Issue number	8
DOIs	https://doi.org/10.2174/157017809790442880
Publication status	Published - Dec 2009

Keywords

1H NMR titration
Calixarenes
Molecular recognition
Water-soluble

ASJC Scopus subject areas

Organic Chemistry
Biochemistry

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10.2174/157017809790442880

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Molecular recognition of alkylammonium, n-methylpyridinium cations and native L-α-Amino acids by water soluble penta- and tetra- sulfonatocalixarenes. / Bonaccorso, Carmela; Gentile, Salvatore; Gulino, Fabio Giuseppe; Sciotto, Domenico.

In: Letters in Organic Chemistry, Vol. 6, No. 8, 12.2009, p. 598-603.

Research output: Contribution to journal › Article › peer-review

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AU - Gulino, Fabio Giuseppe

AU - Sciotto, Domenico

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AB - 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.

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KW - Molecular recognition

KW - Water-soluble

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Molecular recognition of alkylammonium, n-methylpyridinium cations and native L-α-Amino acids by water soluble penta- and tetra- sulfonatocalixarenes

Abstract

Keywords

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