Pyridine-Tautomerism of Hydroxy Pyridine



2- and 4-hydroxy pyridines undergo tautomerism to give pyridones (carbonyl compounds) which can behave like amides. They exist mainly as the ‘amide’ tautomer in most solvents due to them being aromatic and having the advantage of a strong C=O bond in this form.

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L. Forlani, G. Cristoni, C. Boga, P. E. Todesco, E. Del Vecchio, S. Selva and M. Monari, Arkivoc, 2002, 2002, 198–215.



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