摘要
以苯甲醛和正庚醛为原料，氟化钾／氧化铝作催化剂合成了茉莉醛。通过正交试验得到了影响反应的５种主要因素的大小顺序：苯甲醛＞催化剂＞反应温度＞正庚醛的滴加速度＞反应时间；最佳工艺条件：苯甲醛∶正庚醛∶催化剂为１２∶１０∶０．０６（摩尔比），正庚醛的滴加速度为６ｈ，反应温度６０℃，反应时间２ｈ。平均摩尔收率可达９２１％。
Benzaldehyde and heptaldehyde as materials,the α amyl cinnamaldehyde is synthesized in the presence of potassium fluoride on alumina.The sequence of the effects on reaction is benzaldehyde >catalyst >reaction temperature>the dropping speed of heptaldehyde>reaction time.The optimum production conditions are as follows:benzaldehyde∶heptaldehyde∶catalyst is 1.2mol∶1.0mol∶0.06mol,the dropping speed of heptaldehyde is 6h,reaction temperature is 60℃,reaction time is 2h.Under the optimum conditions,the yield of α amyl cinnamaldehyde can reach 92.1%.
出处
《精细化工》
EI
CAS
CSCD
北大核心
1998年第5期18-21,共4页
Fine Chemicals
关键词
氟化钾
氧化铝
催化
茉莉醛
香料
potassium fluoride/alumina,catalysis,synthesis, α amyl cinnamaldehyde
