Abstract
Individual Infrared spectroscopic absorption bands in the double bond region have been assigned to specific, nonequivalent Β-ketoenamine structural fragments, i.e., to atomic groups in which the carbonyl is included in a cyclic oxoindenodihydropyridine system or to a ketoenamine group with a nonrigid carbonyl-containing substituent.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 629–632, May, 1989.
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Vigante, B.A., Ozols, Y.Y., Valtere, S.P. et al. Infrared absorption of 4,5-dihydroindeno[1,2-b]pyridines. Chem Heterocycl Compd 25, 524–527 (1989). https://doi.org/10.1007/BF00482498
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DOI: https://doi.org/10.1007/BF00482498