| 磺化硅胶催化合成苯甲醛-1,2-丙二醇缩醛 |
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| 引用本文： | 张宏. 磺化硅胶催化合成苯甲醛-1,2-丙二醇缩醛[J]. 工业催化, 2011, 19(10): 73-75. DOI: 10.3969/j.issn.1008-1143.2011.10.016 |
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| 作者姓名： | 张宏 |
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| 作者单位： | 宁夏职业技术学院，宁夏 银川 750002 |
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| 摘 要： | 以磺化硅胶为催化剂,苯甲醛和1,2-丙二醇为原料,合成苯甲醛-1,2-丙二醇缩醛.研究了磺化硅胶催化剂用量、原料配比和回流时间对收率的影响.最佳反应条件为:苯甲醛用量0.05 mol,n(苯甲醛)∶n(1,2-丙二醇)=1.0∶1.5,催化剂用量0.2g,带水剂环己烷用量8.0 mL,反应时间80 min,苯甲醛-1,...
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| 关 键 词： | 催化化学 磺化硅胶 固体酸催化 苯甲醛-1,2-丙二醇缩醛 |
Catalytic synthesis of benzaldehyde 1,2-propanediol acetal over suifonated silica gel |
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| ZHANG Hong. Catalytic synthesis of benzaldehyde 1,2-propanediol acetal over suifonated silica gel[J]. Industrial Catalysis, 2011, 19(10): 73-75. DOI: 10.3969/j.issn.1008-1143.2011.10.016 |
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| Authors: | ZHANG Hong |
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| Affiliation: | Ningxia Polytechnic, Yinchuan 750002, Ningxia, China |
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| Abstract: | Benzaldehyde 1,2-propanediol acetal was synthesized using sulfonated silica gel and benzaldehyde and 1,2-propanediol as the raw materials. The effects of catalyst dosage as the catalyst , molar ratio of the reactants and reaction time were investigated. Benzaldehyde 1,2-propanediol acetal yield of over 94.0% was attained under the optimal reaction condition as follows ：benzaldehyde 0.05 mol,n（ benzalde- hyde） ： n（ 1,2-propylene glycol） = 1.0： 1.5, catalyst dosage water-carrying agent cyclohexane 8.0 mL, reaction time 80 0.2 g（4.6% of the mass of benzaldehyde）, min. |
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| Keywords: | catalytic chemistry sulfonated silica gel solid acid catalysis benzaldehyde 1,2-pmpanediol acetal |
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