| 磷钨酸/硅胶催化剂催化合成苯甲醛1,2-丙二醇缩醛 |
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| 引用本文： | 吕宝兰,胡正奇,杨水金.磷钨酸/硅胶催化剂催化合成苯甲醛1,2-丙二醇缩醛[J].湖北师范学院学报(自然科学版),2009,29(1). |
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| 作者姓名： | 吕宝兰 胡正奇 杨水金 |
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| 作者单位： | 湖北师范学院,化学与环境工程学院,湖北,黄石,435002 |
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| 基金项目： | 湖北省自然科学基金，湖北师范学院教研基金 |
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| 摘 要： | 以自制磷钨酸/硅胶为多相催化剂,以苯甲醛和1,2-丙二醇为原料合成苯甲醛1,2-丙二醇缩醛,采用正交试验探讨了合成苯甲醛1,2-丙二醇缩醛的影响因素.实验结果表明:固定苯甲醛物质的量为0.2mol,在n(苯甲醛)∶n(1,2-丙二醇)=1∶1.6,催化剂用量为反应物料总质量的0.75%,带水剂环己烷为10 mL,反应时间30 min的条件下,苯甲醛1,2-丙二醇缩醛的收率为75.9%.
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| 关 键 词： | 苯甲醛1 2-丙二醇缩醛 磷钨酸/硅胶 催化 正交试验法 缩醛反应 |
Synthesis of benzaldehyde 1,2-propanediol acetal by using H_3PW_(12)O_(40)/SG as catalyst |
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| LV Bao-lan,HU Zheng-qi,YANG Shui-jin.Synthesis of benzaldehyde 1,2-propanediol acetal by using H_3PW_(12)O_(40)/SG as catalyst[J].Journal of Hubei Normal University(Natural Science),2009,29(1). |
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| Authors: | LV Bao-lan HU Zheng-qi YANG Shui-jin |
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| Institution: | College of Chemistry and Environmental Engineering;Hubei Normal University;Huangshi 435002;China |
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| Abstract: | A new environmental friendly catalyst,H3PW12O40/SG was prepared.Benzaldehyde 1,2-propanediol acetal was synthesized from benzaldehyde and 1,2-propanediol by using H3PW12O40/ SG as catalyst according to orthogonal test method.Under the reaction condition of the amount of benzaldehyde is 0.20 mol,the molar ratio of benzaldehyde to 1,2-propanediol is 1:1.6,the dosage of catalyst is equal to 0.75% of feed stocks,the volume of cyclohexane as the water-carrying agent is 10mL,and the reaction time is 30min,and yie... |
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| Keywords: | benzaldehyde 1 2-propanediol acetal H3PW12O40/ SG catalysis orthogonal test method acetalization |
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