未明确具体用途,主要作为中间体或原料应用于相关领域。
医药; 农药
合成路线 1(1. 合成:156001-49-9)
产率:97%
合成条件:With carbon tetrabromide; triphenylphosphine In dichloromethane at 0 - 5℃;
实验步骤:步骤b中间体51将1-溴-4-(溴甲基)-3-甲基苯(4-溴-2-甲基苯基)甲醇(10.4g,51.6mmol)溶于无水CH 2 Cl 2(150mL)和CBr 4(18.8g,56.8)中。 mmol)补充。 将反应混合物冷却至0-5℃并加入PPh 3(14.9g,56.8mmol)。 将反应混合物搅拌过夜,然后在剧烈搅拌下加入己烷/ EtOAc(9:1)(250mL)。 滤除反应过程中形成的三苯基氧化膦,将滤液真空浓缩。 将所得油状物在硅胶垫上用己烷/ EtOAc(8:2)纯化。 在旋转蒸发器上除去溶剂,通过真空蒸馏(15mm Hg,沸点:40-50℃)除去溴仿,得到预期产物1-溴-4-(溴甲基)-3-甲基苯(13.23g,97)。 百分比)作为黄色油。 1H NMR(300MHz,氯仿-D):δ7.37-7.27(2H,m),7.17(1H,d,/ = 8.1Hz),4.45(2H,s),2.39(3H,s)。
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