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Pyridino-18-crown-6 ether type chemosensors containing a benzothiazole fluorophore unit: Synthesis and enantiomeric recognition studies
Authors:Dávid Pál  Ildikó Móczár  Balázs Szemenyei  Dániel Marczona  Ivett Kocsis  Gergely Prikler  Panna Vezse  Péter Baranyai  Péter Huszthy
Institution:1. Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, PO Box 91, H-1521, Budapest, Hungary;2. Department of Applied and Nonlinear Optics, Institute of Solid State Physics and Optics, Wigner Research Center for Physics, Hungarian Academy of Sciences, PO Box 49, H-1525, Budapest, Hungary
Abstract:Three new fluorescent enantiopure pyridino-18-crown-6 ethers containing a benzothiazole unit were prepared, and the enantiomeric discrimination of these sensor molecules toward the hydrogen perchlorate salts of 1-phenylethylamine, 1-(1-naphthyl)ethylamine, phenylglycine methyl ester and phenylalanine methyl ester was studied in acetonitrile by fluorescence spectroscopy. The ligands revealed appreciable or moderate selectivity toward the enantiomers of hydrogen perchlorate salts of 1-phenylethylamine, 1-(1-naphthyl)ethylamine and phenylglycine methyl ester.
Keywords:Pyridino-crown ether  Complexation  Enantiomeric recognition  Benzothiazole  Fluorescent sensor molecule
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