Conclusions
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1.
Dynamic NMR spectroscopy has been used to show that the Z, E isomerization of the N-alkyl and N-acyl substitutedα-nitro-β-aminoacrylic acid esters follows a thermal mechanism involving rotation around the C=C bond.
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2.
The PMR, UV, and13C NMR spectra suggest formation of intramolecular H bonds in these compounds.
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3.
The UV spectra indicate ionization of the N-H bond of these compounds in pyridine and DMSO solution.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2719–2725, December, 1978.
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Bakhmutov, V.I., Babievskii, K.K., Burmistrov, V.A. et al. Mechanism of rotation around the carbon-carbon double bond in the nitroenamines, and study of the structures of these compounds in solution by1H and13C NMR methods and UV spectroscopy. Russ Chem Bull 27, 2426–2432 (1978). https://doi.org/10.1007/BF00941090
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DOI: https://doi.org/10.1007/BF00941090