| 硅胶负载硅钨酸催化合成丁醛1,2-丙二醇缩醛 |
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| 引用本文： | 杨水金,闫雪梅,白爱民,陆江林,王冬明.硅胶负载硅钨酸催化合成丁醛1,2-丙二醇缩醛[J].商丘师范学院学报,2012(6):59-62. |
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| 作者姓名： | 杨水金 闫雪梅 白爱民 陆江林 王冬明 |
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| 作者单位： | 湖北师范学院化学与环境工程学院 |
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| 基金项目： | 湖北省自然科学基金资助项目(2005ABA053) |
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| 摘 要： | 以硅胶负载硅钨酸为催化剂,通过丁醛与1,2-丙二醇反应合成了丁醛1,2-丙二醇缩醛.较系统地研究了醛醇量比、催化剂用量、带水剂用量及反应时间等条件对收率的影响.结果表明:在丁醛用量为0.20 mol,n(丁醛)∶n(1,2-丙二醇)=1∶1.3,催化剂用量为0.1 g,环己烷为带水剂用量为4 mL,反应时间30 min的优化条件下,丁醛1,2-丙二醇缩醛的收率可达82.6%.
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| 关 键 词： | 丁醛1 2-丙二醇缩醛 硅胶负载硅钨酸 催化 缩醛反应 |
Catalytic synthesis of butyraldehyde 1,2-propanediol acetal with H4SiW12O40/silica gel |
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| YANG Shuijin,YAN Xuemei,BAI Aimin,LU Jianglin,WANG Dongming.Catalytic synthesis of butyraldehyde 1,2-propanediol acetal with H4SiW12O40/silica gel[J].Journal of Shangqiu Teachers College,2012(6):59-62. |
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| Authors: | YANG Shuijin YAN Xuemei BAI Aimin LU Jianglin WANG Dongming |
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| Institution: | (College of Chemistry and Environmental Engineering,Hubei Normal University,Huangshi 435002,China) |
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| Abstract: | Butyraldehyde 1,2-propanediol acetal was synthesized f rom butyraldehyde and 1,2-propanediol in the presence of H4SiW12O40/SG.The factors influencing the synthesis were investigated.The optimum conditions were found.The optimum conditions were as follows: molar ratio of butyraldehyde to 1,2-propanediol is 1∶1.3,the mass of the catalyst is 0.1g,the volume of cyclohexane as the water-carrying agent is 4 mL,and the reaction time is 30min.H4SiW12O40/SG is an excellent catalyst for synthesizing butyraldehyde 1,2-propanediol acetal and the product yield can reach 82.6%. |
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| Keywords: | butyraldehyde 1 2–propanediol acetal H4SiW12O40/SG catalysis acetalation |
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