化学合成。
化学合成
合成路线 1(1. 合成:54879-20-8)
产率:100%
合成条件:With hydrogenchloride; iron In methanol; water at 20℃; for 125 h; Heating / reflux
实验步骤:依次将铁粉(3.86g,69mmol),水(5mL)和浓HCl(0.5mL)加入到市售的2-溴-3-硝基甲苯(5g,23mmol)的甲醇(100mL)溶液中。 在室温下将混合物加热回流125小时。 减压除去溶剂,将残余物悬浮在水(400mL)中并用氯仿(3×250mL)萃取。 用MGSO 4干燥合并的有机萃取物,减压除去溶剂,得到2-溴-3-甲基苯胺(步骤1),为琥珀色油状物(4.45g,100%):1H NMR(CDCl 3)5 2.30(s,3H) ,4.00(br s,2H),7.60(m,2H),7.00(t,1H)。
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