Synthesis of polyfluorinated aminoquinolines via nitroquinolines
作者:Alexandrina D. Skolyapova、Galina A. Selivanova、Evgeny V. Tretyakov、Irina Yu. Bagryanskaya、Vitalij D. Shteingarts
DOI:10.1016/j.jfluchem.2018.04.006
日期:2018.7
Transformation of 14 quinolines polyfluorinated in the benzene moiety was investigated in nitration systems: a mixture of HNO3 and H2SO4, NaNO3 in H2SO4, NO2BF3OH in sulfolane, or NaNO3 in oleum. 5-Nitro- and/or 8-nitro derivatives formed if positions 5 or 8 were unoccupied in the starting compounds. Otherwise, nitro products were not detectable, and the initial compounds were oxidized. In some cases
在苯部分氟化的14个喹啉转化进行了研究在硝化系统:HNO的混合物3和H 2 SO 4,纳米3 H中2 SO 4,NO 2 BF 3 OH在环丁砜,或纳米3中的发烟硫酸。如果起始化合物中不存在5或8位,则形成5-硝基和/或8-硝基衍生物。否则,无法检测到硝基产物,并且初始化合物被氧化。在某些情况下,邻位的F原子相对于硝基的位置被取代,从而得到羟基硝基喹啉。与在位置2不包含取代基的喹啉相比,多氟2-氯喹啉更容易被硝化。因此,提出了一种方法,用于将硝基喹啉还原为其他方法无法获得的氨基喹啉。