Brönsted acidic ionic liquid as an efficient catalyst for acetylation of alcohols and phenols

AR Hajipour, L Khazdooz…

Index: Hajipour, Abdol R.; Khazdooz, Leila; Ruoho, Arnold E. Journal of the Chinese Chemical Society, 2009 , vol. 56, # 2 p. 398 - 403

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Citation Number: 19

Abstract

Abstract A novel Brönsted acidic room temperature ionic liquid (1-H-3-methyl-imidazolium bisulfate) is found to catalyze efficiently the acetylation of a wide rang of alcohols as well as phenols with acetic anhydride in good to excellent yields at 50 C under solvent-free conditions. Products are easily isolated by extraction with ether and the protocol is mild and green, compared to the existing method based on toxic solvents.