微波辐射下α-蒎烯与甲酸的加成反应

Additional Reaction of α-pinene with Formic Acid Under Microwave Irradiation

研究了微波辐射下α 蒎烯与甲酸的加成反应。结果表明,加成反应较好的工艺条件为:α 蒎烯0.03mol,甲酸0.15mol,硫酸催化剂用量7.14×10-4mol,微波功率700W,反应时间40min。在此工艺条件下,主产物甲酸松油酯的得率为60.4%,选择性为64.5%。微波辐射技术应用于甲酸松油酯的合成,在低温条件下反应速率和选择性的提高并不明显,其作用机理还有待进一步探讨。

Additional reaction of α-pinene with formic acid under microwave irradiation was studied,and the optimun experiment factors are as follows:0.03 mol of α-pinene,0.15 mol of formic acid,(7.14×10^(-4 ) mol) of sulfuric acid(catalyst),700 W of the microwave power,40 min of the reaction time.The content of the main product terpinyl formate is up to 60.4%,the selectivity is 64.5% in the optimun experiment factors.In summary,the microwave technique cann't remarkably promote the synthesis of the terpinyl formate with a high yield and rate.The further efforts are needed on the study of microwave.