4-氟-3-硝基溴苄作为重要中间体,广泛应用于医药、农药等领域的有机合成反应中,具体用途需结合下游反应进一步确定。
医药; 农药
合成路线 1(1. 合成:15017-52-4)
产率:95%
合成条件:With phosphorus tribromide In diethyl ether at 20℃; for 1 h;
实验步骤:化合物1a-2:2-溴甲基-4-氟-3-硝基苯; [显示图像]将三溴化磷(1.13mL)加入到4-氟-3-硝基苄醇(2.1g,11.23mmol)的乙醚(40mL)溶液中,并将该混合物在室温下搅拌1小时。。 然后将水加入反应混合物中,用乙酸乙酯萃取。 用饱和碳酸氢钠溶液和饱和盐水洗涤有机萃取物。 用硫酸镁干燥并减压浓缩后,所得残余物通过柱色谱纯化,得到标题化合物(2.50mg,95%),为浅黄色固体。 1H NMR(270MHz,CDCl3)δ(ppm):8.10(dd,1H,J = 7.1,2.2Hz),7.67(m,1H),7.29(dd,1H,J = 10.7,8.6Hz),4.49( s,2H)。
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