摘要
本文报道了以固载杂多酸盐TiSiW12 O40 /TiO2 为环境友好催化剂 ,对以肉桂酸和异戊醇为原料合成肉桂酸异戊酯的反应条件进行了研究。实验表明 :TiSiW12 O40 /TiO2 是合成肉桂酸异戊酯的良好催化剂 ,最佳反应条件为 :n(醇 )∶n(酸 ) =4∶1,催化剂用量为反应物料总质量的 2 .0 % ,反应时间 1.5h ,反应温度 10 6 - 114℃。上述条件下 ,肉桂酸异戊酯的收率可达 70 .6 %。
The synthesis of iso-amyl cinnamate by using TiSiW 12 O 40 /TiO 2 as a new environmental friendly catalyst has been studied. The results indicate that TiSiW 12 O 40 /TiO 2 possesses a fairly high catalytic activity for the esterification reaction. The factors influencing the synthesis were discussed and the best conditions were found out. The optimum conditions are: molar ratio of iso-amyl alcohol to cinnamic acid is 4∶1, the quantity of catalyst is equal to 2.0% feed stock, the reaction temperature is 106-114℃, and the reaction time is 1.5h. TiSiW 12 O 40 /TiO 2 is an excellent catalyst for synthetizing iso-amyl cinnamate and its yield can reach over 70.6%.
出处
《香料香精化妆品》
CAS
2003年第2期13-15,共3页
Flavour Fragrance Cosmetics
基金
湖北省自然科学基金 (No .99J0 64 )
湖北省教育厅重点科研基金资助项目
关键词
环境友好催化剂
合成
肉桂酸异戊酯
研究
iso-Amyl cinnamate TiSiW 12 O 40 /TiO 2 Catalysis Esterification
