Conclusions
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1.
The dynamic PMR method was used to show that the character of the effect of the acid on the Z,E-isomerization of nitroenamines depends on the mechanism of the “rotation” around the C =C bond.
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2.
Based on the PMR data, acids affect the isomeric equilibrium of α-nitro-β-aminoacrylic esters in MeCN, in which connection the amount of the Z-isomer increases in acid medium.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 2166–2170, September, 1978.
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Bakhmutov, V.I., Babievskii, K.K. Z,E-isomerization of α-nitro-β-aminoacrylic esters in acid medium. Russ Chem Bull 27, 1914–1917 (1978). https://doi.org/10.1007/BF00929258
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DOI: https://doi.org/10.1007/BF00929258