A method for the synthesis of differently substituted 2-nitrodiarylamines via nucleophilic substitution of hydrogen in nitroarenes is described. In the two-step procedure, the first step omits classical substitution of halogens in starting nitroarenes and occurs efficiently at the position ortho to the activating group. Subsequent oxidation of the 2-nitrosoanilines so formed is accomplished with a
描述了通过氢在硝基
芳烃中的亲核取代来合成不同取代的2-硝基二芳基胺的方法。在两步法中,第一步省略了起始硝基
芳烃中卤素的经典取代,并且有效地发生在活化基团的邻位。如此形成的2-
亚硝基苯胺的随后氧化反应是在温和的条件下用廉价且环境友好的试剂过
硼酸钠完成的。在胺取代的
亚硝基苯胺的特殊情况下,需要更多的选择性氧化剂(IBX)。