| CuCl2掺杂聚苯胺催化合成苯甲醛1,2-丙二醇缩醛 |
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| 引用本文： | 何淼,周海霞,刘春生,罗根祥.CuCl2掺杂聚苯胺催化合成苯甲醛1,2-丙二醇缩醛[J].化学研究与应用,2006,18(5):557-560. |
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| 作者姓名： | 何淼 周海霞 刘春生 罗根祥 |
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| 作者单位： | 辽宁石油化工大学石油化工学院,辽宁,抚顺113001 |
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| 摘 要： | 缩醛是一类重要化合物,具有原料来源丰富、生产工艺简单、化学性质稳定等优点,近20年来作为新型香料在日用香精和食品香精中均有广泛应用1-2]。根据酸催化机理,Lewis酸可增强羰基碳的正电性,有利亲核试剂的进攻。研究表明,不少无机盐都是这类反应的高效、高选择性的催化剂,又因为无机盐价廉、易得等优点,所以用其作为催化剂具有更加重要的实际意义。聚苯胺(PAn)以其独特的掺杂现象及良好的稳定性为催化载体的选择提供了新的途径3-4]。若以PAn为载体,将具有催化活性的路易斯酸掺杂其中,可降低路易斯酸的流失量,并克服其易潮解、腐蚀设备…
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| 关 键 词： | 缩醛 氯化铜 聚苯胺 催化 |
| 文章编号： | 1004-1656（2006）05-0557-04 |
| 收稿时间： | 2005-05-24 |
| 修稿时间： | 2005-07-26 |
Catalytic synthesis of benzaldehyde 1,2-propylene acetalization by the catalyst of polyaniline doped with copper chloride |
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| HE Miao,ZHOU Hai-xia,LIU Chun-sheng,LUO Gen-xiang.Catalytic synthesis of benzaldehyde 1,2-propylene acetalization by the catalyst of polyaniline doped with copper chloride[J].Chemical Research and Application,2006,18(5):557-560. |
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| Authors: | HE Miao ZHOU Hai-xia LIU Chun-sheng LUO Gen-xiang |
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| Institution: | Petrochemical Engineering School, Liaoning University of Petroleum and Chemical Technology,Fushun 113001 ,China |
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| Abstract: | A new envirmentally-friendly catalyst,PAn-CuCl_2 was prepared.Benzaldehyde 1,2-propylene acetalization was synthesized from benzaldehyde and 1,2-propylene alcohol in the presence of polyaniline doped with copper chloride.Factors influencing the product yield were discussed and the optimum conditions were found.Experimental result showed that polyaniline doped with copper chloride is an excellent catalyst.With n(benzaldehyde)/n(1,2-propylene)=1/1.5,w(polyaniline doped with copper chloride)=0.98%,cyclohexane 14mL and reaction time 2.0 h,yield of benzaldehyde 1,2-propylene acetalization can reach 91%. |
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| Keywords: | acetalization copper chloride polyaniline catalysis |
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