Arones in a mixture of acetic acid and concentrated sulfuric acid, were converted to aromatic acid phenyl esters by Potassium persulfate innearly quantitative yield with 97%(GC) purity.

• 二芳基甲酮在冰乙酸与浓硫酸混合液中，可被过硫酸钾，几乎定量地氧化生成芳甲酸苯酯。