Synthesis and Complexation Studies of Optically Active Aza- and Diazacrown Ethers Containing a Pyrene Fluorophore Unit
Authors
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Dávid Pál
AffiliationDepartment of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, P.O.B. 91, H-1521 Budapest, Hungary
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Martin Gede
Affiliation
Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, P.O.B. 91, H-1521 Budapest, Hungary
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Ildikó Móczár
Affiliation
Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, P.O.B. 91, H-1521 Budapest, Hungary
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Péter Baranyai
Affiliation
Department of Applied and Nonlinear Optics, Institute of Solid State Physics and Optics, Wigner Research Center for Physics, Hungarian Academy of Sciences, P.O.B. 49, H-1525 Budapest, Hungary
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Péter Bagi
Affiliation
Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, P.O.B. 91, H-1521 Budapest, Hungary
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Péter Huszthy
Affiliation
Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, P.O.B. 91, H-1521 Budapest, Hungary
Abstract
Novel enantiopure azacrown [(R,R)-1 and (S,S)-1] and diazacrown [(R,R)-2–(R,R)-4 and (S,S)-2–(S,S)-4] ethers containing a pyrene fluorophore unit and two phenyl groups at their chiral centers were obtained in multistep syntheses. The action of these chemosensors is based on the photoinduced electron transfer (PET) process, thus they show fluorescence enhancement in the presence of protonated primary amines and amino acid esters. Their recognition abilities toward the enantiomers of 1-phenylethylamine hydrogen perchlorate (PEA), 1-(1-naphthyl) ethylamine hydrogen perchlorate (NEA), phenylglycine methyl ester hydrogen perchlorate (PGME), and phenylalanine methyl ester hydrogen perchlorate (PAME) were examined in acetonitrile using fluorescence spectroscopy.
