化学合成,合成C3对称纳米聚芳烃和分子螺旋桨的结构单元。
光电器件; 分子识别; 锂电池; 储氢材料
合成路线 1(1. 合成:151417-38-8)
产率:89%
合成条件:With sulfated tungstate In neat (no solvent) at 130℃; for 10 h;
实验步骤:通用方法:在装有冷凝器的圆底烧瓶中,在130℃下搅拌芳基烷基酮(3mmol)和硫酸化钨酸盐(20wt%)的混合物,通过TLC监测反应进程。 芳基烷基酮消失后,继续反应2小时。 冷却反应混合物,用30mL乙酸乙酯稀释并过滤以回收催化剂。 将滤液用10mL水洗涤,经硫酸钠干燥并减压浓缩。 残余物通过硅胶(60-120)柱色谱纯化,用(PE:EA = 9:1)作为洗脱剂,得到纯的1,3,5-芳基苯。
参考文献:
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合成路线 2(2. 合成:151417-38-8)
产率:13.3%
合成条件:With iodine; sodium hydrogencarbonate; sodium thiosulfate; acetic acid In toluene
实验步骤:实施例1(1,3,5-三(4-碘苯基)苯的制备)116g 1,3,5-三苯基苯,19mL浓硫酸作为催化剂,和1520mL 80%乙酸作为反应将溶剂置于2L容量的烧瓶中,并在搅拌下将混合物加热至70℃的温度。然后,在约2小时半的时间内,在烧瓶中一次1/10加入143g碘和69.3g正立体酸,然后在搅拌下反应6小时,得到含有白色沉淀的反应产物。向反应混合物中加入甲苯以溶解沉淀物,并将甲苯层与水层分离。甲苯层用碳酸氢钠水溶液洗涤,然后用硫代硫酸钠水溶液洗涤。然后浓缩有机层并进行硅胶色谱分离,分离反应产物,用乙醇/甲苯/重结晶,得到34.6g所需的1,3,5-三(4-碘苯基)苯,为白色针状物。晶体。产率为13.3%。
参考文献:
- [1] Patent: EP1826837, 2007, A1