Abstract
A simple neutral naphthyridine-based chemosensor 1, which selectively recognizes the tetrabutylammonium salt of N-acetyl-l-proline over the other N-acetyl-l-amino acid salts studied in CHCl3 containing 0.1% DMSO, has been designed and synthesized. Moreover, the complexation-induced change in emission characteristics of 1 distinguishes the amino acid salts examined from their conjugate acids. Interaction studies were performed by UV–vis, fluorescence and NMR spectroscopic methods. A simple neutral naphthyridine –based chemosensor 1, which selectively recognizes the tetrabutylammonium salt of N-acetyl-l-proline in CHCl3 containing 0.1% DMSO, has been designed and synthesized. The complexation-induced change in emission characteristics of 1 distinguishes the amino acid salts from their conjugate acids.
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