New Alkylation Route of Benzene with Ethylene Catalyzed by [bmim]Cl/FeCl_3 Ionic Liquid

• 作 者: 孙学文 赵锁奇 王仁安
• 机 构: State Key Laboratory of Heavy Oil Processing Petroleum University(Beijing), Beijing 102249, China,St
• 出 处: Chinese Journal of Chemical Engineering
• 发表日期: 2004年05期
• 关键词: Ionic Friedel catalyzed benzene ionic initiated Ethylene liquids distinctly imid

Up to now the mechanism of Friedel-Crafts reactions catalyzed by ionic liquid have not been fully understood, while carbocation mechanism was assumed. It was found that the source of H+ and the route of reaction initiated the alkylation of benzene with ethylene catalyzed by [bmim]Cl/FeCl3 ionic liquid. The fact that dewatered ionic liquids have catalytic activity for the alkylation of benzene with ethylene suggests that there exists a new catalytic route. The distinctly Bronsted acid properties of 2-H in [bmim]Cl were found through FT-IR and HNMR

Up to now the mechanism of Friedel-Crafts reactions catalyzed by ionic liquid have not been fully understood, while was derived from H + and the route of reaction initiated the alkylation of benzene with ethylene catalyzed by [bmim ] Cl / FeCl3 ionic liquid. The fact that dewatered ionic liquids have catalytic activity for the alkylation of benzene with ethylene suggests that there exists a new catalytic route. The distinctly Bronsted acid properties of 2-H in [bmim] Cl were found through FT -IR and HNMR