聚醚桥连二异羟肟酸双核锰(Ⅲ)配合物催化苯乙烯环氧化性能研究  

Studies on the synthesis and catalytic performance in styrene epoxidation by manganese(Ⅱ)polyether-bridged dihydroxamates

作　　者：李鸿波[1] 李建章[2] 周波[2] 曾伟[2] 秦圣英[2] 

机构地区：[1]西南科技大学材料科学与工程学院,四川绵阳621010 [2]四川大学化学学院,四川成都610064

出　　处：《化学研究与应用》2005年第3期335-338,共4页Chemical Research and Application

基　　金：国家自然科学基金资助项目(20072025)

摘　　要：以一系列的聚醚桥连二异羟肟酸作配体,制备了金属锰(Ⅲ)配合物。以苯乙烯环氧化作模型反应,研究了Mn2L21Cl2～Mn2L27Cl2在温和条件下的催化氧化性能;考察了反应温度、催化剂用量、轴配体、苯乙烯浓度以及双核锰配合物的配体中桥链长度、刚柔性、氧杂原子及其构筑的冠环结构对环氧化反应的影响。A series of manganese(Ⅲ)polyether-bridged dihydroxamates Mn_2L_2~1Cl_2～Mn_2L_2~7Cl_2 were prepared and employed to the catalytic epoxidation of styrene under a mild reaction condition.The influences of reaction temperature,catalyst amount,axial ligand,concentration of styrene as well as the length,rigidity and flexibility of the linkers were investigated.

关 键 词：开链冠醚 二异羟肟酸锰 苯乙烯 催化环氧化 

分 类 号：O625.12[理学—有机化学]