不同类型固体超强酸催化合成冰片的研究

Study on Synthesis of Borneol Catalyzed by Different Types of Solid Superacid

以不同类型的固体超强酸催化草酸和松节油合成冰片(草酸龙脑酯),结果表明,催化剂D4(SO42-/ZrO2-SnO2)对酯化反应的催化效果最佳。研究发现,焙烧温度、浸渍浓度对催化剂D4性能的影响最大;催化剂D4的最佳制备条件为:焙烧温度600℃,焙烧时间4 h,浸渍浓度1.5 mol.L-1。可为厂家利用松节油生产冰片开辟一条新的途径。

The synthesis of borneol catalyzed by different types of solid superacids were studied. The results showed that the solid superacid D4 （SO4^2-/ZrO2-SnO2） had the best catalytic activity. The temperature and the concentration of acid for dipping were the most important effective factors for the catalytic performance of solid superacid. And the temperature of 600℃ ,the roasting time of 4 h and the concentration of acid 1.5 mol · L^-1 were the optimum conditions for solid superacid D4（SO4^2-/ZrO2-SnO2）. It provided a new way for the production of borneol by turpentine.