Alkylation of anthracene to 2-isopropylanthracene catalyzed by Lewis acid ionic liquids

作者：Chen Min^*; Luo Ying; Li Guofang; He Minqiang; Xie Jimin; Li Huamin; Yuan Xinhua

来源：Korean Journal of Chemical Engineering, 2009, 26(6): 1563-1567.

DOI：10.1007/s11814-009-0257-9

• Lewis Acidic Ionic Liquid
• Alkylation
• 2-Isopropylanthracene
• Anthracene
• 2-Chloropropane

Alkylation of anthracene with 2-chloropropane to 2-isopropylanthracene catalyzed by various Lewis acidic ionic liquids (ILs), such as [Emim]Cl-AlCl(3), [Emim]Cl-FeCl(3), [Emim]Cl-ZnCl(2), [Bmim]Cl-AlCl(3), and [Omim]Cl-AlCl(3) ([Emim](+)=1-ethyl-3-methylimidazolium cation, [Bmim](+)=1-butyl-3-methylimidazolium cation, [Omim](+)=1-octyl-3-methylimidazolium cation,), was investigated. [Emim]Cl-AlCl(3) ionic liquid was found to be the most active catalyst in the alkylation. The yield of 2-isopropylanthracene was up to 74.5% and the selectivity of 2-isopropylanthracene was up to 82.9%. The [Emim]Cl-AlCl(3) ionic liquid catalyst showed good catalytic activity after running for 6 times. Ease of product separation and the recycling performance of the ionic liquid catalyst is expected to contribute to the development of clean and environmentally friendly strategy for the synthesis of 2-isopropylanthracene.

• 出版日期2009-11
• 单位江苏大学