Conclusions
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1.
According to1H and13C NMR spectra, the molecules of 1-vinylazoles are conformationally homogeneous.
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2.
An increase in the number of N atoms in the azole ring leads to an increase in the role of the acceptor π-induction effect in relation to the pπ conjugation in the N-vinyl fragment.
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Translated from Izvestiya Adademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2676–2680, December, 1981.
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Sigalov, M.V., Kalabin, G.A., Proidakov, A.G. et al. NMR spectroscopic study of conjugation effects 14. NMR spectra and structure of 1-vinylazoles. Russ Chem Bull 30, 2226–2229 (1981). https://doi.org/10.1007/BF00963676
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DOI: https://doi.org/10.1007/BF00963676