ACETYLATION OF AROMATIC COMPOUND WITH ACETYL FLOURIDE

摘要

This invention provides a process for producing an acetyl-substituted aromatic compound by making an aromatic compound react with acetyl fluoride in the presence of substantially anhydrous hydrogen fluoride as a catalyst. It has been already known to acylate an aromatic compound with an acid fluoride in the presence of boron fluoride or hydrogen fluoride and boron fluoride as a catalyst. It has been found that, in a reaction of an aromatic compound with acetyl fluoride, even when hydrogen fluoride alone is used as a catalyst, the intended acetyl-substituted aromatic compound can be obtained in excellent yield and further the complex compound formed can be decomposed without difficulty and the hydrogen fluoride catalyst can be easily recovered.