| H3PW12O40/TiO2催化合成苯甲醛1,2-丙二醇缩醛 |
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| 引用本文： | 许招会,廖维林,王生.H3PW12O40/TiO2催化合成苯甲醛1,2-丙二醇缩醛[J].日用化学工业,2005,35(6):371-373. |
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| 作者姓名： | 许招会 廖维林 王生 |
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| 作者单位： | 江西师范大学,化学化工学院,江西,南昌,330027;江西师范大学,化学化工学院,江西,南昌,330027;江西师范大学,化学化工学院,江西,南昌,330027 |
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| 基金项目： | 江西师范大学青年成长基金资助项目（200400322） |
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| 摘 要： | 采用溶胶-液相法制备了H3PW12O40／TiO2复合催化剂，用FT-IR对催化剂进行了结构表征。以苯甲醛和1，2-丙二醇为原料合成了苯甲醛1，2-丙二醇缩醛，考察了反应物配比、催化剂用量、反应时间及催化剂的重复使用对产品收率的影响。实验结果表明，合成苯甲醛1，2-丙二醇缩醛的较优反应条件为：n（苯甲醛）／n（1，2-丙二醇）=1．0／1．3，催化剂的用量为反应物总质量的2．0％，甲苯为带水剂，反应5．0h，苯甲醛1，2-丙二醇缩醛的收率可达90．0％以上。
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| 关 键 词： | 香料 苯甲醛1 2-丙二醇缩醛 合成 |
| 文章编号： | 1001-1803(2005)06-0371-03 |
| 收稿时间： | 04 21 2005 12:00AM |
| 修稿时间： | 08 6 2005 12:00AM |
Synthesis of benzaldehyde 1,2- propanediol acetal by H3PW12O40/TiO2 |
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| XU Zhao-hui,LIAO Wei-lin,WANG Sheng.Synthesis of benzaldehyde 1,2- propanediol acetal by H3PW12O40/TiO2[J].China Surfactant Detergent & Cosmetics,2005,35(6):371-373. |
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| Authors: | XU Zhao-hui LIAO Wei-lin WANG Sheng |
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| Affiliation: | Chemistry and Chemical Engineering of Jiangxi Normal University, Nanchang 330027, China |
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| Abstract: | A complex catalyst,H_3PW_(12)O_(40)/TiO_2 was prepared by sol-liquid phase method and characterized by FT-IR.Benzaldehyde 1,2-propanediol acetal was synthesized from benzaldehyde and 1,2-propanediol using the prepared catalyst.The factors that effect the synthesis were discussed and suitable conditions are as follows:n(benzaldehyde)/n(1,2-propanediol)=1.0/1.3,the dosage of catalyst is 2.0 % of the feed stock,toluene is used as water carring agent,the reaction time is 5.0 h.Experimental results showed that under the above reaction conditions,the yield of benzaldehyde 1,2-propanediol acetal can achieve higher than 90.0 %. |
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| Keywords: | aromatics benzaldehyde 1 2 propanediol acetal synthesis |
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