辽宁石油化工大学学报Issue(6)：1-5,5.DOI:10.3969/j.issn.1672-6952.2015.06.001
磷钨酸盐催化苯甲醛的缩醛化反应
Tungstate Phosphorus Compounds Catalytic Synthesis of Acetals
摘要
Abstract
AlPW1 2 O 40 was prepared by phosphotungstic acid and Al (NO 3 )3 · 9 H 2 O and used as catalyst to catalyze the condensation of benzaldehyde with 1,2-propylene glycol using cyclohexane as water trapping reagent.The reaction condition including catalyst pretreatment temperature,amount of cyclohexane,molar ratio of starting materials,reaction time,dosage of catalyst and oil bath temperature were investigated.The results show that AlPW1 2 O 40 is a good catalyst for the condensation of benzaldehyde with 1,2-propylene glycol.The optimal reaction condition were as followed:n (alcohol)∶n (aldehyde)=2.0∶1, catalyst pretreatment at 150 ℃,0.7 g of catalyst,7 mL of cyclohexane and 2.6% total mass of starting material at 130 ℃ for 3 h.The conversion of benzaldehyde can reach up to 98.83% under optimal condition.关键词
磷钨酸/苯甲醛 1,2-丙二醇缩醛/1,2-丙二醇/苯甲醛/催化Key words
Phosphotungstic acid/Benzaldehyde 1,2-propylene glycol acetal/1,2-propylene glycol/Benzaldehyde/Catalysis分类
能源科技引用本文复制引用
杨星,王欣,陈平..磷钨酸盐催化苯甲醛的缩醛化反应[J].辽宁石油化工大学学报,2015,(6):1-5,5.基金项目
辽宁省自然科学基金项目(201202128)。 （201202128）
