Abstract
2-Aminopyridines react under thermolysis conditions with ethyl 1-R-4-chloro-2-oxoquinoline-3-carboxylates exclusively in the imino form to give the corresponding 5-R-5H-5,7a,12-triazabenzo[a]anthracene-6,7-diones and 4-(pyridyl-2-amino)-1-R-quinolin-2-ones.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 1060–1070, July, 2005.
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Ukrainets, I.V., Sidorenko, L.V. & Gorokhova, O.V. 4-Hydroxy-2-quinolones. 84. Synthesis of 5-R-5H-5,7a,12-Triazabenzo[a]anthracene-6,7-diones. Chem Heterocycl Compd 41, 896–904 (2005). https://doi.org/10.1007/s10593-005-0245-x
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DOI: https://doi.org/10.1007/s10593-005-0245-x