摘要
以硅钨酸为催化剂合成了环己酮乙二醇缩酮 .考察了影响缩合反应的各种因素 .结果表明 ,最适宜的工艺条件是酮醇摩尔比为 1∶1 5 ,0 5g硅钨酸为催化剂 ,15ml环己烷带水 ,回流反应 3h ,缩酮的产率为 92 8% .
Cyclohexanone ethylene ketal is synthesized with silicotungstic acid as catalyst.The factors of the effects reaction are examined.The results show that optimum conditions with 1∶1.5 molar ratio of ketone alcohol,the amount of silicotungstic acid and cyclohexane are 0.5 g and 15 ml,reaction is reflux for 3 h,The yield of the ketal is 92.8%.
基金
湖南省教委自然科学基金!(98B0 84)
