| K_2CO_3/Al_2O_3催化丙醛缩合制备2-甲基-2-戊烯醛 |
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| 引用本文： | 翁文,蔡萍双,郑美嫦,林凤,陈友遵.K_2CO_3/Al_2O_3催化丙醛缩合制备2-甲基-2-戊烯醛[J].应用化工,2007,36(9):877-878. |
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| 作者姓名： | 翁文 蔡萍双 郑美嫦 林凤 陈友遵 |
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| 作者单位： | 漳州师范学院,化学与环境科学系,福建,漳州,363000 |
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| 摘 要： | 制备了K2CO3/Al2O3固体碱催化剂,并将其用于催化丙醛缩合合成2-甲基-2-戊烯醛。当反应温度为85℃,反应时间1 h,溶剂乙醇10 mL,丙醛用量9.4 mL,催化剂用量为1.0 g时,2-甲基-2-戊烯醛的产率可达71.2%。固体K2CO3不具备催化性能。
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| 关 键 词： | 2-甲基-2-戊烯醛 固体碱催化剂 K2CO3/Al2O3 缩合反应 丙醛 |
| 文章编号： | 1671-3206（2007）09-0877-02 |
| 修稿时间： | 2007-07-22 |
Condensation preparation of 2-methyl-2-pentenal from propionaldehyde catalyzed by K2CO3/Al2O3 |
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| WENG Wen,CAI Ping-shuang,ZHENG Mei-chang,LIN Feng,CHEN You-zun.Condensation preparation of 2-methyl-2-pentenal from propionaldehyde catalyzed by K2CO3/Al2O3[J].Applied chemical industry,2007,36(9):877-878. |
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| Authors: | WENG Wen CAI Ping-shuang ZHENG Mei-chang LIN Feng CHEN You-zun |
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| Affiliation: | Department of Chemistry and Environmental Science,Zhangzhou Normal University ,Zhangzhou 363000, China |
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| Abstract: | Solid base catalyst,K2CO3/Al2O3 was prepared and applied in the condensation preparation of 2-methyl-2-pentenal from propionaldehyde.When the reaction temperature was 85 ℃,reaction time 1 h,ethanol 10 mL,the amount of propionaldehyde 9.4 mL and the catalyst 1.0 g,the yield of 2-methyl-2-pentenal was 71.2%.Pure K2CO3 did not possess catalytic ability to the contrary. |
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| Keywords: | K2CO3/Al2O3 |
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