Abstract
3-(2-Acylhydrazino)-2-tetra(penta)fluorobenzoylacrylates are readily converted to acylamino-substituted quinolones and, under more forcing conditions, annelation of oxadiazine ring occurs. We have identified the possible cyclization of the mentioned acrylates to 4,5-substituted pyrazoles.
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Lipunova, G.N., Nosova, E.V., Charushin, V.N. et al. Synthesis of Fluorinated 1,3,4-Oxadiazino[6,5,4-i,j]quinolines. Chemistry of Heterocyclic Compounds 37, 1278–1288 (2001). https://doi.org/10.1023/A:1013814014098
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DOI: https://doi.org/10.1023/A:1013814014098