无催化剂条件下环辛烯环氧化反应  

Epoxidation of Cyclooctene without Catalyst

作　　者：俞晓玉[1,2] 李军[1] 张生军[1] 徐占林[2] 高爽[1] 奚祖威[1] 

机构地区：[1]中国科学院大连化学物理研究所,大连116023 [2]吉林师范大学化学学院,四平

出　　处：《应用化学》2009年第7期851-853,共3页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金(20233050,20643006)资助项目

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%。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 

分 类 号：O621.3[理学—有机化学]