化学合成。
化学合成
合成路线 1(1. 合成:939-79-7)
产率:95%
合成条件:at 0℃; for 2 h;
实验步骤:A. 4-甲基-3-硝基苄腈。 在1小时内将硝酸(20mL)滴加到0℃的4-甲苯腈(11g,0.098mol)的H 2 SO 4(20mL)混合物中。 将反应混合物在0℃下再搅拌1小时,然后倒入碎冰中。 过滤收集得到的沉淀,得到标题化合物,为白色固体(15.2g,95%)。 1H NMR(500MHz,CDCl3):8.27(d,J = 1.6Hz,1H),7.78(dd,J = 8.0,1.7Hz,1H),7.51(d,J = 8.0Hz,1H),2.69(s) ,3H)。
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