| KF/Al_2O_3催化柠檬醛和丙酮缩合制备假性紫罗兰酮 |
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| 引用本文： | 唐斯萍,李谦和.KF/Al_2O_3催化柠檬醛和丙酮缩合制备假性紫罗兰酮[J].零陵学院学报,2004(11). |
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| 作者姓名： | 唐斯萍 李谦和 |
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| 作者单位： | 衡阳师范学院化学与材料科学系，湖南师范大学化学化工学院精细催化研究所 湖南 衡阳 421008，湖南 长沙 410081 |
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| 摘 要： | 本文以KF／Al2O3为催化剂,研究了柠檬醛和丙酮缩合制备假性紫罗兰酮的反应,重点考察了反应温度、反应时间、反应原料摩尔配比(柠檬醛/丙酮)、催化剂用量诸因素对反应的影响,确定了制备假性紫罗兰酮的优化反应条件:温度15℃、时间0.5h、柠檬醛／丙酮10mmol／90mmol、催化剂KF／Al2O3 1.45g,柠檬醛的转化率为97.6％,假性紫罗兰酮的选择性为100％。
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| 关 键 词： | 柠檬醛 丙酮 缩合 假性紫罗兰酮 KF/Al2O3 |
Synthesis of Pseudo-ionone by Condensation of Citral with Acetone in presence of KF/Al_5O_3 |
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| Authors: | TANG Si-ping LI Qian-he |
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| Abstract: | This paper studied the synthesis of pseudo-ionone from mixed aldol condensation of citral and acetone, with Al2O3-supported KF as the catalyst of the condensation.The optimum conditions were established: reaction temperature 15+++++ ;reaction time 0.5h;citral:acetone 10mmo/90mmol; the amount of KF/ Al2O3 is 1.45g; the conversion of citral is up to 97.6%,the selectivity of pseudo-ionone is 100%. |
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| Keywords: | citral acetone condensation pseudo-ionone KF/Al2O3 |
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