Acetylation of aromatic ethers using acetic anhydride over solid acid catalysts in a solvent-free system. Scope of the reaction for substituted ethers.
The acetylation of aryl ethers using acetic anhydride in the presence of zeolites under modest conditions in a solvent-free system gave the corresponding para-acetylated products in high yields. The zeolite can be recovered, regenerated and reused to give almost the same yield as that given when fresh zeolite is used.
Smith
Keith
K
Centre for Clean Chemistry, Department of Chemistry, University of Wales Swansea, Singleton Park, Swansea, UK SA2 8PP.
el-Hiti
Gamal A
GA
Jayne
Anthony J
AJ
Butters
Michael
M