摘要
以磷钨钼杂多酸为催化剂,由苯甲醛和乙二醇反应合成了苯甲醛乙二醇缩醛,系统考察了醛醇物质量比、催化剂用量以及反应时间诸因素对产品收率的影响。确定的适宜工艺条件为:n(苯甲醛)∶n(乙二醇)=1∶1.6,催化剂用量为反应物料总质量的0.6%,带水剂环己烷的用量为10mL,反应时间60min。在此反应条件下,苯甲醛乙二醇缩醛的收率可达82.0%。
H3PW6Mo6O40 was used as catalyst for synthesizing benzaldehyde glycol acetal from benzaldehyde and glycol. Various factors concerned in the reaction have been investigated. The optimum conditions have been found as follows ： the molar ratio of benzaldehyde to glycol 1 ： 1.6, mass ratio of the catalyst based on the reactants 0.6 %, and the reaction time 60 minutes. Under these conditions, the yield of benzaldehyde glycol acetal is 82.0 %.
出处
《精细石油化工进展》
CAS
2007年第5期23-25,共3页
Advances in Fine Petrochemicals
基金
湖北省自然科学基金(2005ABA053)资助项目
