Regioselective synthesis of benzo[g]- and benzo[f]quinolines by reaction of chalcones with naphthalen-2-amine
作者:V. D. Pak、Ya. V. Bykov、N. N. Yaganova、A. A. Gorbunov、V. A. Glushkov、M. V. Dmitriev、P. A. Slepukhin
DOI:10.1134/s1070428017040108
日期:2017.4
Reactions of 4- and 4′-substituted chalcones with naphthalen-2-amine afforded isomeric benzo[g]- and benzo[f]quinoline derivatives. Depending on the substituent in the initial chalcone, the cyclization follows two pathways through different intermediates. The product structure was confirmed by IR, 1H and 13C NMR, and mass spectra and X-ray analysis.
4-和4'-取代的查耳酮与萘-2-胺的反应得到异构体苯并[ g ]-和苯并[ f ]喹啉衍生物。取决于初始查尔酮中的取代基,环化遵循通过不同中间体的两条途径。通过IR,1 H和13 C NMR,质谱和X射线分析确认产物结构。