3种席夫碱钼的合成及催化环己烯环氧化反应  

Synthesis and Catalysed Cyclohexene Epoxidation of Three Schiff Base Molybdenums

作　　者：许春鹏 王加禄 满畅 李湘丽 王进锋 李俊 乔永锋 XU Chunpeng;WANG Jialu;MAN Chang;LI Xiangli;WANG Jinfeng;LI Jun;QIAO Yongfeng(School of Chemistry and Chemical Engineering,Kunming University,Kunming,Yunnan,China 650214;School of Physical Science and Technology,Kunming University,Kunming,Yunnan,China 650214;R&D Center of Yunnan Tin Group(Holding)Limited Liability Company,Kunming,Yunnan,China 650299)

机构地区：[1]昆明学院化学化工学院,云南昆明650214 [2]昆明学院物理科学与技术学院,云南昆明650214 [3]云南锡业集团(控股)有限责任公司研发中心,云南昆明650299

出　　处：《昆明学院学报》2024年第6期49-55,共7页Journal of Kunming University

基　　金：云南省教育厅科学研究基金研究生项目(2024Y758);云南省企业基础研究应用基础研究联合专项项目(202101BC070001-026).

摘　　要：为研究钼配合物催化环己烯环氧化的性能,合成了3种具有不同电子效应的席夫碱钼配合物,采用红外光谱、紫外-可见吸收光谱、X射线单晶衍射及热重分析等技术对其进行了表征.以席夫碱钼配合物((L_(1))_(2)-Mo)为催化剂,过氧化氢为氧化剂,进行了环己烯环氧化反应实验.在最佳条件下,该反应的转化率为81.75%,选择性为94.25%.实验结果表明,在席夫碱钼配合物中引入推电子基团可增强催化剂活性.In order to investigate the performance of molybdenum complexes in the catalytic epoxidation of cyclohexene,three Schiff base molybdenum complexes with different electronic effects were synthesised and characterised by a range of analytical techniques,including infrared spectroscopy,UV-visible spectroscopy,X-ray single-crystal diffraction and thermogravimetric analysis.The cyclohexene epoxidation reaction was conducted using a Schiff base molybdenum complex(L_(1))_(2)-Mo as the catalyst and hydrogen peroxide as the oxidant.Under optimal conditions,the reaction yielded 81.75%conversion and 94.25%selectivity.The experimental results demonstrated that the incorporation of electron-pushing groups into the Schiff base molybdenum complexes could enhance the catalyst activity.

关 键 词：席夫碱 钼配合物 环己烯 环氧化 

分 类 号：O621[理学—有机化学]