Abstract
An analysis of the PMR spectra (using double resonance) of the isomeric 3-, 6-, 7-, and 8-methyl and 7-ethyl-5-azacinnolines, and also of 7-methyl-8-azacinno-line has shown the presence in these structures of a considerable localization of the C5-C6 and C7-C8 bonds, which has been confirmed by the results of a quantum-chemical calculation by the PPP method.
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Deceased.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 541–543, April, 1980.
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Terent'ev, P.B., Kartsev, V.G., Kost, A.N. et al. PMR spectra of azacinnolines. Chem Heterocycl Compd 16, 421–423 (1980). https://doi.org/10.1007/BF00552786
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DOI: https://doi.org/10.1007/BF00552786