Synthesis of benzaldehyde 1,2-propanediol acetal catalyzed by SO_4^(2-)/TiO_2-MoO_3-La_2O_3 solid superacid

Synthesis of benzaldehyde 1,2-propanediol acetal catalyzed by SO_4^(2-)/TiO_2-MoO_3-La_2O_3 solid superacid

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摘要 Benzaldehyde 1,2-propanediol acetal was synthesized from benzaldehyde and 1,2-propanediol in the presence of SO42-/TiO2-MoO3-La2O3.The factors influencing the synthesis were discussed and the best conditions were found out.The optimum conditions are:molar ratio of benzaldehyde to 1,2-propanediol is 1:1.8,the quantity of catalyst is equal to 1.0% feed stock,and the reaction time is 1.0 h.SO42-/TiO2-MoO3-La2O3 is an excellent catalyst for synthesizing benzaldehyde 1,2-propanediol acetal and its yield can reach over 77.2%. Benzaldehyde 1,2 -propanediol acetal was synthesized from benzaldehyde and 1,2 -propanediol in the presence of SO4^2-/TiO2 - MoO3 - La2O3. The factors influencing the synthesis were discussed and the best conditions were found out. The optimum conditions are ： molar ratio of benzaldehyde to 1,2 - propanediol is 1 ： 1.8, the quantity of catalyst is equal to 1.0% feed stock, and the reaction time is 1.0 h. SO4 ^2-/TiO2 - MoO3 -La2O3 is an excellent catalyst for synthesizing benzaldehyde 1,2 - propanediol acetal and its yield can reach over 77.2%.

作者 YANG Shui-jin XIA Jia GAO Fei

机构地区 Department of Chemistry and Environmental Engineering

出处《商丘师范学院学报》 CAS 2007年第12期81-83,共3页 Journal of Shangqiu Normal University

基金 Supported by the Natural Science Foundation of Hubei Province(No2005ABA053)

关键词苯甲醛-1 2-丙二醇乙缩醛催化合成载体 benzaldehyde 1,2 - propanediol acetal SO4 ^2-/TiO2 - MoO3 -La2O3 catalysis acetalization

分类号 TQ426.91 [化学工程] TQ655 [化学工程—精细化工]

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商丘师范学院学报

2007年第12期

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Synthesis of benzaldehyde 1,2-propanediol acetal catalyzed by SO_4^(2-)/TiO_2-MoO_3-La_2O_3 solid superacid

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