Acetylation catalyzed by functionalized ionic liquid [bmim] OTs

作者：Liu Lu^*; Liu Ye; Cai Yueqin

来源：Chinese Journal of Catalysis, 2008, 29(4): 341-345.

• acetylation
• functionalization
• ionic liquid
• alcohol
• phenol
• amine

The functionalized ionic liquid of 1-butyl-3-methylimidazolium toluene-p-sulfonate ([bmim]OTs) dissolved in 1-butyl-3-methytimidazolium tetrafluoroborate ([bmim]BF4) can efficiently catalyze the acetylation of benzyl alcohol under neutral reaction conditions. It shows high activity and stability even after recycling use ten times. A multicomponent ionic liquid system, [bmim]OTs-[bmim]BF4, exhibits good universality to various substrates such as alcohols (primary, secondary, and tertiary), phenols, and amines. The formed intermediate of AcOTs derived from the reaction between [bmim]OTs and acetic anhydride (AC(2)O) is the catalytically active species with the supportive information from C-13 NMR analysis.

• 出版日期2008-4
• 单位华东师范大学