Structure,tautomerism, and transformations of β-(3-nitro-2-pyridyl)- and β-(3-nitro-4-pyridyl)pyruvic acid esters |
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| Authors: | E. M. Peresleni M. Ya. Uritskaya V. A. Azimov V. A. Loginova T. F. Vlasova Yu. N. Sheinker L. N. Yakhontov |
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| Affiliation: | (1) S. Ordzhonikidze All-Union Scientific-Research Pharmaceutical-Chemistry Institute, Moscow |
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| Abstract: | It was shown by means of IR, UV, and PMR spectra that  -(3-nitro-2-pyridyl)pyruvic acid esters are practically completely enolized in the crystal state and in solution; ethyl -(3-nitro-4-pyridyl)pyruvate has an enol structure in the crystalline state and in pyridine solution but exists as a mixture of keto and enol forms in low-polarity solvents.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 389–393, March, 1974. |
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