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无催化剂条件下环辛烯环氧化反应
Epoxidation of Cyclooctene without Catalyst
【摘要】 以O2气为氧源,在无溶剂无引发剂条件下,研究了非催化剂体系中环辛烯环氧化反应,并考察了反应温度、时间、压力、自由基引发剂以及自由基阻聚剂对环辛烯环氧化反应的影响。实验结果表明,在无催化剂条件下,当反应初压0.60MPa,反应时间2.0h时,在140℃的较高温度下,以分子氧为氧源,环辛烯的转化率为44.5%,环氧环辛烷的选择性可达到64.4%。
【Abstract】 The uncatalyzed epoxidation of cyclooctene with molecular oxygen as oxidant under solvent-free and no-inducement conditions has been studied.The effects of reaction conditions sush as temperature,time and pressure on the epoxidation of cyclooctene were investigated.The 44.5% of cyclooctene conversion and 64.4% of cyclooctane epoxide selectivity were obtained when the reaction was carried out at 140 ℃ and initial O2 pressure 0.60 MPa for 2.0 h.
【关键词】 环辛烯;
分子氧;
环氧化;
自由基;
环氧环辛烷;
【Key words】 cyclooctene; molecular oxygen; epoxidation; radical; cyclooctane epoxide;
【Key words】 cyclooctene; molecular oxygen; epoxidation; radical; cyclooctane epoxide;
【基金】 国家自然科学基金(20233050,20643006)资助项目
- 【文献出处】 应用化学 ,Chinese Journal of Applied Chemistry , 编辑部邮箱 ,2009年07期
- 【分类号】O643.32
- 【被引频次】2
- 【下载频次】335