不对称双席夫碱Ni配合物催化环己烯环氧化  

Cyclohexene of Styrene by Novel Asymmetric Schiff base Copper Complex

作　　者：王静[1,2] 卢荣 朱路群[1] 胡春梅[1,2] 吕兴强[1] 

机构地区：[1]西北大学化工学院,陕西西安710069 [2]西安雅芝生物科技有限公司,陕西西安710000

出　　处：《化工技术与开发》2017年第9期5-10,共6页Technology & Development of Chemical Industry

基　　金：陕西省教育厅专项科研计划项目(12JK0577)

摘　　要：本文以3,5-二叔丁基水杨醛与邻苯二胺合成席夫碱配体(L2),用该配体与Ni2+配位合成中间体(L2-Ni),再与不同的芳香醛反应制得一系列不对称Salen-Ni(Ⅱ)配合物。利用傅里叶变换红外光谱和元素分析对配体和配合物进行了表征。然后以30%的过氧化氢为氧源,以一系列不对称Salen-Ni(Ⅱ)配合物为催化剂,探究了环己烯环氧化反应的催化性能和配体上不同推拉电子基团对催化反应的影响。通过优化反应条件,环己烯的转化率和选择性最高可达到67.4%、43.5%。Ligand L2 was synthetized with 3,5-Di-tert-butyl-2-hydroxybenzaldehyde and o-phenylenediamin, which was coordinated with Ni2＋. A series of asymmetric Salen-Ni （ Ⅱ ） complexes were synthetized by different aromatic aldehyde and L2-Ni.The complexes and ligand L2 were characterised by FT-IR, elemental analysis. The in？uence of the catalytic properties and different electron-releasing groups or electron-withdrawing groups on ligand of the epoxidation of cyclohexene were explored with 30% H2O2 as oxidation and a series of asymmetric Salen-Ni（Ⅱ ） complexes as catalysts. The result showed the conversion and selectivity of cyclohexene attained to 67.4% and 43.5% under the optimum reactive conditions.

关 键 词：不对称Salen-Ni(Ⅱ) 环己烯 环氧化反应 过氧化氢 

分 类 号：O643[理学—物理化学]