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本文研究了在酸性离子液体的催化作用下α-甲基苯乙烯二聚合成1,1,3-三甲基-3-苯基茚满。实验结果表明,在无溶剂的条件下室温离子液体(CH_3CH_2)_3NHCl-AlCl_3对该反应具有很高的催化活性和目标产物的选择性,反应进行到5min即可达到100%的α-甲基苯乙烯转化率和97%的环状二聚物1,1,3-三甲基-3-苯基茚满的选择性。
In this paper, dimerization of α-methylstyrene to 1,1,3-trimethyl-3-phenylindan under the catalysis of acidic ionic liquid was studied. The experimental results show that the room temperature ionic liquid (CH_3CH_2) _3NHCl-AlCl_3 has high catalytic activity and selectivity to the target product under solvent-free conditions. The reaction can reach 100% of the content of α-methylbenzene Ethylene conversion and 97% selectivity to cyclic dimer 1,1,3-trimethyl-3-phenylindan.