Epoxy ether cleaving reactions catalyzed by supporting Lewis acidic ionic liquid

Lewis acidic ionic liquids were used to catalyze the reaction of epoxypropane with POCl₃. Considering the lower cost and catalytic activities, we concluded that Et₃NH]Cl/AlCl₃ was the most attractive ionic liquid from an economical point of view. But it would be easily inactivated because of sensitive to water and air. Moreover, it could not be reused easily because of difficulty recovery in the reaction. However, supporting Et₃NH]Cl/AlCl₃ catalyst could resolve above problems. Supporting Et₃NH]Cl/AlCl₃ catalyst could be separated by filter easily and reused 5 times in 98% yield. Furthermore, the catalyst was applicable to other epoxy ether cleaving reactions.