Acetylation of alcohols and phenols with acetic anhydride under solvent-free conditions using an ionic liquid based on morpholine as a recoverable and reusable catalyst

作者：Yue Caibo^*; Liu Qingqing; Yi Tingfeng; Chen Yun

来源：Monatshefte fur Chemie, 2010, 141(9): 975-978.

DOI：10.1007/s00706-010-0353-x

• Acetylation
• Economical acidic ionic liquid
• Catalyst
• Acetic anhydride

Rapid and efficient acetylation of alcohols and phenols with acetic anhydride is performed in the presence of economical Bronsted acidic ionic liquids that bear a propanesulfonic acid group on a morpholinium cation as catalysts under solvent-free conditions. [MMPPA][HSO(4)] (N-methylmorpholinium propanesulfonic acid ammonium hydrogensulfate) was proven to be the most active catalyst, and after removal of water, it could be recycled and reused for up to four times without a noticeable decrease in catalytic activity.

• 出版日期2010-9
• 单位安徽工业大学