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用无水三氯化稀土作为Lewis酸 ,催化对 甲氧基苯酚与 2 氯 2 甲基丙烷的Friedel Crafts烷基化反应 ,合成了食品添加剂 3 叔丁基 4 羟基茴香醚
The rare earth trichloride was used as Lewis acid to catalyze the Friedel Crafts alkylation reaction of p-methoxyphenol and 2-chloro-2-methylpropane to synthesize the food additive 3 tert-butyl 4-hydroxyanisole