新型有效的PEG_(1000)-DAIL[BF_4]/Fe_2(SO_4)_3均相催化氯化苄水解反应(英文)

Novel and Efficient Hydrolysis of Benzyl Chloride Catalyzed by PEG_(1000)-DAIL[BF_4]/Fe_2(SO_4)_3 Under Homogeneous Catalysis

在离子液体PEG1000-DAIL[BF4]、甲苯和Fe2(SO4)3组成的温控两相催化体系作用下,氯化苄的均相催化水解反应能够高效地进行,在110℃搅拌反应40min,产物苯甲醇收率高达96%.该新方法收率高,操作简单,催化体系可以较好地回收循环使用而且催化活性基本保持不变.同时,对水解反应的机理和温控两相催化的过程也进行了阐述.

Benzyl alcohol was obtained in 96% high yield by hydrolysis of benzyl chloride,which was catalyzed by the recyclable temperature-dependant phase-separation catalytic system that comprised of the ionic liquid PEG1000-DAIL,toluene and ferric sulfate（Fe2（SO4）3） under homogeneous catalysis in aqueous media.The reaction mixture was stirred for 40 min at 110 ℃.The method has the advantages of high yield of easy operation.The catalytic system can be recycled or reused without any significant loss of catalytic activity.The mechanism of hydrolysis reaction and the process of catalysis in the thermoregulated ionic liquid bi-phase system are also proposed.