Abstract
1H and13C NMR was used to estimate the dihedral angles between the planes of the vinyl group and the hetero ring for 1-vinylpyridones and quinolones. The1H,13C,15N, and17O NMR data showed the existence of a specific intramolecular weak hydrogen bond between the α-H atom of the vinyl group and the O atom in 1-vinyl-2-pyridones and 2-vinyl-1-isoquinolone.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1539–1547, July, 1990.
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Afonin, A.V., Vashchenko, A.V., Andriyankov, M.A. et al. Multinuclear NMR (1H,13C,15N,17O) studies of intramolecular interactions in 1-vinylpyridones and quinolones. Russ Chem Bull 39, 1392–1399 (1990). https://doi.org/10.1007/BF00957845
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DOI: https://doi.org/10.1007/BF00957845