摘要
报道了以自制的H4SiW12 O40 (硅钨酸 ) -PAn (聚苯胺 )为催化剂 ,通过苯甲醛和乙二醇为原料合成了苯甲醛乙二醇缩醛。实验表明 :合成苯甲醛乙二醇缩醛适宜反应条件为 :n(苯甲醛 ) /n(乙二醇 ) =1 /2 .0 ,催化剂用量为反应物料总质量的 1 .0 % ,环己烷为带水剂 ,反应时间 1 .0h。上述条件下 ,苯甲醛乙二醇缩醛的收率可达 86.7% .
Benzaldehyde glycol acetal was synthesized from benzaldehyde and glycol in the presence of H 4 SiW 12 O 40 -PAn. The factors influencing the synthesis were discussed and the best conditions were found out. The optimum conditions are: molar ratio of benzaldehyde to glycol is 1:2.0, the quantity of catalyst is equal to 1.0% feed stock, and the reaction time is 1.0 h. H 4 SiW 12 O 40 -PAn is an excellent catalyst for synthesizing benzaldehyde glycol acetal and its yield can reach over 86.7%.
出处
《香料香精化妆品》
CAS
2004年第5期17-19,26,共4页
Flavour Fragrance Cosmetics
