Abstract
3-(2-Benzimidazolyl)-4-hydroxy-2-quinolone was unexpectedly obtained as the principal reaction product on fusion of 2-carbethoxymethyl-4H-3,1-benzoxazin-4-one with o-phenylenediamine. A possible mechanism of its formation is presented.
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For Communication 2 see [1].
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 239–241, February, 1992.
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Ukrainets, I.V., Bezuglyi, P.A., Treskach, V.I. et al. 2-Carbethoxymethyl-4H-3,1-benzoxazin-4-one. 3. Condensation of o-phenylenediamive. Chem Heterocycl Compd 28, 198–200 (1992). https://doi.org/10.1007/BF00473945
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DOI: https://doi.org/10.1007/BF00473945