UNPRECEDENTED OUTCOME OF BASE-PROMOTED NEBER REARRANGEMENT OF O-MESYLOXIME OF 2-ARYL-1,2,3,4-TETRAHYDRO-1-METHYLSUL FONYL-4-QUINOLONE- SYNTHESIS OF 4-AMINO-2-ARYLQUINOLINES
作者:Malose J. Mphahlele、Omankutty Gheevarghese、Nkosinathi F. H. Makhubela
DOI:10.1080/10426500008076551
日期:2000.1.1
4-tetrahydro-1-methylsulfonyl-4-quinolones react with sodium ethoxide in ethanol to afford the 4-amino-2-arylquinolines in high yield. No traces of the 3-amino-2-aryl-4-quinolones expected from the Neber rearrangement of the substrates were detected or isolated from the reaction mixture. The structures of the products were determined using a combination of 1H NMR, 13C NMR, IR and mass spectroscopic techniques
摘要 衍生自 2-芳基-1,2,3,4-四氢-1-甲基磺酰基-4-喹诺酮类的 O-Mesyloximes 与乙醇钠在乙醇中反应,以高产率得到 4-氨基-2-芳基喹啉。没有检测到或从反应混合物中分离出痕量的 3-氨基-2-芳基-4-喹诺酮类化合物,这些化合物是由底物的 Neber 重排所预期的。使用 1H NMR、13C NMR、IR 和质谱技术的组合确定产物的结构。