Potentially tautomeric pyridines. IV. Ethyl 2-, 3-, and 4-pyridyl acetate

Abstract

Ultraviolet and infrared spectral comparisons of the isomeric pyridylacetic esters with the anhydro bases derived from the corresponding N-methyl derivatives show that the title compounds exist predominantly in the pyridine form. Basicity measurements provided a quantitative estimation of the tautomeric ratios.