The yield of the ester could reach 82.3% under amount of substance ratio of benzoic acid, isoamyl alcohol and ammonium ferric sulfate were 1:4:0.17, refluxing and water segrating for 4h.

• 当苯甲酸、异戊醇和硫酸铁铵的物质量比为 1:4:0 .；17；回流分水 4h；酯收率达 82