化学合成。
化学合成
合成路线 1（1. 合成：20870-79-5）
产率：98%
合成条件：at -15℃; for 0.50 h;
实验步骤：5-硝基 - 羟吲哚的制备在-15℃下向羟吲哚（26g）在100mL浓硫酸中的溶液中滴加发烟硝酸（8.4mL）。 小心注意将反应温度保持在-15℃。加完后，将反应物搅拌30分钟，然后倒入冰水中。 形成黄色沉淀，通过过滤分离，得到34克（98％）5-硝基羟吲哚。
参考文献：
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