化学合成。
化学合成
合成路线 1(1. 合成:90725-68-1)
产率:95.5%
合成条件:With N-Bromosuccinimide; dibenzoyl peroxide In tetrachloromethane at 83℃; for 5 h;
实验步骤:向2-甲基-5-硝基苯甲酸甲酯(6.4g,32.76mmol)的CCI 4(80mL)溶液中加入NBS(6.4g,36.1mmol)和BPO(794mg,3.28mol)。 将所得混合物在83℃下搅拌5小时。 减压浓缩反应混合物,残余物用EtOAc(150mL)稀释,用H 2 O(120mL×3)洗涤。 将有机相干燥并浓缩,得到棕色油状的2-(溴甲基)-5-硝基苯甲酸甲酯(8.5g,95.5%),将其不经进一步纯化直接用于下一步骤。 LCMS(方法B):2.59分钟[M + Na] + = 295.9,297.9
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