Synthesis of Linalyl Acetate Catalyzed by p-Toluenesulphonic Acid

Linalyl acetate was synthesized by esterification of linalool and acetic anhydride with p-toluenesulphonic acid as catalyst.Influences of reaction temperature,reaction time,dosage of catalyst and ratio of linalool to acetic anhydride were discussed.Under the optimum reaction conditions n(linalool)∶n(acetic anhydride)=1∶2,catalyst amount 0.2% the total weight of linalool and acetic anhydride,reaction time 150 min and reaction temperature 15 ℃,the yield was up to 73.6%.In comparison with present technology,this method has many advantages such as lower reaction temperature,shorter reaction time,no entrainer needed and higher yield.