化学合成。
化学合成
合成路线 1(1. 合成:20699-85-8)
产率:100%
合成条件:With hydrogenchloride; tin(ll) chloride In water at 80℃; for 1 h;
实验步骤:向上述产物中加入浓硝酸(20mL,0.24mol)的6-硝基 - 苯并[b]噻吩-2-甲酸甲酯(1g,0.004mol)和SnCl 2·H 2 O(4.85g,0.017mol)。 将反应在80℃下搅拌1小时,然后冷却至低温。 然后,使用10%NaOH水溶液将反应混合物的pH升至pH = 9~11。 然后过滤悬浮液,用H 2 O洗涤残余物,接着用CH 3 OH洗涤,得到产物,定量为黄色固体。
参考文献:
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