NMR studies of novel Schiff bases derived from L-alpha-amino methyl esters and 3-hydroxypyridin-4-carboxaldehyde |
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| Authors: | Perona Almudena Sanz Dionisia Claramunt Rosa M Elguero José |
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| Institution: | Departamento de Química Orgánica y Bio-Orgánica, Facultad de Ciencias, UNED, Senda del Rey 9, E-28040 Madrid, Spain. aperona@bec.uned.es |
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| Abstract: | Schiff bases of 3-hydroxypyridin-4-carboxaldehyde and L-alpha-amino esters as well as those derived from the structurally related amines lacking the ester function have been synthesised. In two cases a tetrahydro-1H-imidazo4,5-c]pyridine was formed as a by-product. (1)H, (13)C, (15)N-NMR spectral data and density functional theory (DFT) calculations established the structure of all compounds. |
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| Keywords: | Schiff bases tautomerism hydrogen bonds NMR spectroscopy DFT calculations |
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