| 硫酸铝催化苯甲醛与1,2-丙二醇的缩醛化反应 |
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| 引用本文： | 郑清云,李谦和. 硫酸铝催化苯甲醛与1,2-丙二醇的缩醛化反应[J]. 吉林化工学院学报, 2001, 18(3): 29-30,33 |
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| 作者姓名： | 郑清云 李谦和 |
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| 作者单位： | 1. 常德师范学院化学化工系
2. 湖南师范大学精细催化研究所 |
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| 摘 要： | 用Al2 (SO4 ) 3·18H2 O作催化剂催化苯甲醛与 1,2 -丙二醇的缩醛化 .通过实验研究 ,得出该反应的最适宜反应条件 :醇醛摩尔比为 0 .1∶0 .0 5 ,反应温度 94～ 10 0℃ ,Al2 (SO4 ) 3·18H2 O 0 .6 0g (12 g/mol) ,环已烷 10mL ,反应时间 2 .5h ,苯甲醛 - 1,2 -丙二醇缩醛产率可达 98.6 % .本法具有操作方便 ,反应温和 ,产品纯度高的优点
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| 关 键 词： | 硫酸铝 苯甲醛 丙二醇 催化 缩醛化 |
Acetalization of benzaldehyde with 1,2-propanediol using aluminum sulfate as catalyst |
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| ZHENG Qing yun ,LI Qian he $$$$. Acetalization of benzaldehyde with 1,2-propanediol using aluminum sulfate as catalyst[J]. Journal of Jilin Institute of Chemical Technology, 2001, 18(3): 29-30,33 |
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| Authors: | ZHENG Qing yun LI Qian he $$$$ |
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| Affiliation: | ZHENG Qing yun 1,LI Qian he 2$$$$ |
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| Abstract: | The acetalization of benzaldehyde with 1,2 propanediol by using aluminum sulfate as catalyst is studied. The optimal conditions are obtained by experiments. The yield of the acetal reaches 98.6% when the mole ratio of propanediol to benzaldehyde is 0.1∶0.05, the temperature is 94～100*!℃, the amount of Al 2(SO 4) 3·18H 2O is 12*!g/mol, the amount of cyclohexanne is 10 ml, and the reaction time is 2.5*!h. This method takes the advantages of simple operation, mild reaction conditions, and high purity and yield of the product. |
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| Keywords: | aluminum *!benzaldehyde *!propanediol *!catalysis *!acetalization |
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