Abstract
8-Aroyl-3,4-dihydropyrrolo[2,1-a][1,4]oxazin-1,6,7(1H)-triones react with o-phenylenediamine to form 3-[2-aryl-2,4-dihydroxy-1-(2-hydroxyethyl)-5-oxo-2,5-dihydro-(1H)-pyrrol-3-yl]quinoxaline-2(1H)-ones. The spectral characteristics of these compounds are similar to those with N-[2,4-dihydroxy-5-oxo-3-(3-oxo-4H-quinoxalin-2-yl)-2-phenylpyrrol-1-yl]benzamide, the structure of which is confirmed by X-ray diffraction analysis.
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The work was financially supported by the Ministry of Education and Science of the Russian Federation (project nos. 4.6774.2017/ 8.9 and 4.5894.2017/7.8) and the Government of the Perm Krai.
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Tretyakov, N.A., Maslivets, A.N. Recyclization of Pyrrolo[2,1-a][1,4]oxazinetriones under the Action of o-Phenylenediamine. Synthesis of 3-(Pyrrolyl)quinoxalinones. Russ J Org Chem 56, 332–334 (2020). https://doi.org/10.1134/S1070428020020256
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DOI: https://doi.org/10.1134/S1070428020020256