| 无溶剂条件下反应控制相转移催化氯丙烯氧化制环氧氯丙烷 |
| |
| 引用本文： | 刘声.无溶剂条件下反应控制相转移催化氯丙烯氧化制环氧氯丙烷[J].分子催化,2010,24(5). |
| |
| 作者姓名： | 刘声 |
| |
| 作者单位： | 中国科学院大连化学物理研究所;大连工业大学; |
| |
| 基金项目： | 国家重点基础研究发展规划(973)资助项目，国家自然科学基金，教育部留学回国人员科研启动基金资助项目 |
| |
| 摘 要： | 系统地研究了无溶剂条件下,H2O2为氧源,反应控制相转移催化剂(C16H33(70%)+C18H37(30%))N(CH3)3]3PW4O16]催化氯丙烯环氧化制环氧氯丙烷反应.结果表明,在氯丙烯/H2O2/催化剂(摩尔比)=400∶100∶1条件下,50～55℃反应3 h,环氧氯丙烷的收率为85～87%.在NaH2PO4存在下,催化剂循环使用5次,活性无明显降低,新鲜催化剂和回收催化剂的31P MAS NMR谱分析结果表明NaH2PO4对催化剂结构和组成具有稳定作用.
|
| 关 键 词： | 氯丙烯 反应控制相转移催化剂 H2O2 环氧化 环氧氯丙烷 |
| 收稿时间： | 2010/7/19 0:00:00 |
| 修稿时间： | 2010/8/17 0:00:00 |
Epoxidation of Allyl Chloride with H2O2 Catalyzed by Reaction-Controlled Phase-Transfer Catalyst under Solvent-free Conditions |
| |
| LIU Sheng,ZHANG Sheng-jun,ZHAO Gong-da,LI Jun,AN Qing-da,GAO Shuang.Epoxidation of Allyl Chloride with H2O2 Catalyzed by Reaction-Controlled Phase-Transfer Catalyst under Solvent-free Conditions[J].Journal of Molecular Catalysis (China),2010,24(5). |
| |
| Authors: | LIU Sheng ZHANG Sheng-jun ZHAO Gong-da LI Jun AN Qing-da GAO Shuang |
| |
| Institution: | LIU Sheng1,2,ZHANG Sheng-jun1,ZHAO Gong-da1,LI Jun1,AN Qing-da2,GAO Shuang1(1 Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian,116023,China,2 Department of Chemical Technology,Dalian Polytechnic University,116034,China) |
| |
| Abstract: | Epoxidation of allyl chloride without solvent catalyzed by reaction controlled phase transfer catalyst (C16H33(70%) C18H37(30%))N(CH3)3]3PW4O16] using H2O2 as oxidant was described. Under the optimized conditions (allyl chloride / H2O2/catalyst (molar ratio) =400:100:1, 50~55 oC, 3 h.) 85~87% yield of epichlorohydrin was obtained. The catalyst can be reused with good stability in the presence of NaH2PO4. The structure and the composition of the fresh catalyst and the recovered catalysts was investigated by 31P MAS NMR spectra.. The results demonstrated NaH2PO4 can keep the catalyst stable. |
| |
| Keywords: | Allyl chloride Reaction-controlled phase-transfer catalyst Hydrogen peroxide Epoxidation Epichlorohydrin |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《分子催化》浏览原始摘要信息 |
| 点击此处可从《分子催化》下载免费的PDF全文 |
|
