| 由乙苯制备对乙基苯乙烯 |
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| 引用本文： | 许湧深,朱立平,李红兵.由乙苯制备对乙基苯乙烯[J].石油化工,2003,32(8):704-707. |
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| 作者姓名： | 许湧深 朱立平 李红兵 |
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| 作者单位： | 天津大学,化工学院,天津,300072 |
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| 摘 要： | 以硼氢化钾为还原剂,以水、醇为混合介质,将对乙基苯乙酮还原为对乙基苯乙醇,研究了多相反应体系的工艺优化;再以对乙基苯乙醇与硫酸氢钾共热的方法进行脱水反应,采用反应精馏的工艺,制得对乙基苯乙烯。用红外光谱、核磁共振等手段对还原产物、脱水产物分别进行了表征。
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| 关 键 词： | 苯乙烯衍生物 对乙基苯乙烯 还原 脱水 乙酰化 |
| 文章编号： | 1000-8144(2003)08-0704-04 |
| 修稿时间： | 2003年3月10日 |
Synthesis of p - Ethyl - Styrene from Ethylbenzene |
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| XU Yong-shen,ZHU Li-ping,LI Hong-bing.Synthesis of p - Ethyl - Styrene from Ethylbenzene[J].Petrochemical Technology,2003,32(8):704-707. |
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| Authors: | XU Yong-shen ZHU Li-ping LI Hong-bing |
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| Abstract: | p-Ethyl-hypnone was prepared from ethylbenzene by Friedel-Crafts acylation.p-Ethyl-hypnone was then reduced and dehydrated to p-ethyl-styrene.Reduction of p-ethyl-hypnone was carried out in a mixed medium of water and methanol where KBH4 was used as reducing agent.The process was optimized in this multiphase system.Successive dehydration was catalyzed by KHSO4 as dehydrating agent through a reaction-rectification process.Products of reduction and dehydration were identified by methods of IR and 1H NMR. |
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| Keywords: | styrene derivative p-ethyl-styrene reduction dehydration acylation |
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