Selective epoxidation of linear terminal olefins with metalloporphyrins under mild conditions  

作　　者：Xiaoguang BAI Yuanbin SHE 

机构地区：[1]Institute of Green Chemistry and Fine Chemicals,Department of Chemistry and Chemical Engineering,College of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100124,China

出　　处：《Frontiers of Chemical Science and Engineering》2009年第3期310-313,共4页化学科学与工程前沿（英文版）

基　　金：This work was supported by the Key Project of the Natural Science Foundation of Beijing(No.2061001);the Project of the National Natural Science Foundation of China(Grant Nos.20576005 and 20776003).

摘　　要：The epoxidation of linear terminal olefins with metalloporphyrins in the presence of dioxygen and isobutyraldehyde under ambient temperature and atmo-spheric pressure was investigated.The results show that all olefins could be smoothly converted to epoxides with high selectivities(70%–90%).For the metalloporphyrins with different catalytic activities within 1-hexene epoxidation in the order of Fe>Mn>Co,T(o-Cl)PPFe(III)Cl was most effective,with a 41.7%yield and 80.2%selectivity of 1,2-epoxyhexane.Various amounts of catalyst were investi-gated,and it was found that with only 10ppm catalyst the yield of 1,2-epoxyhexane and turnover number(TON)could reach up to 41.9%and 41859,respectively.

关 键 词：METALLOPORPHYRINS OLEFINS DIOXYGEN epox-idation 

分 类 号：O62[理学—有机化学]