N-[4-(-2-羟基乙氧基)苯甲酰基]-N-苯基羟胺的合成及其锰配合物对苯乙烯的仿生催化环氧化性能  

Synthesis of N-[4-(2-Hydroxy ethoxyl)benzoyl]-N-phenyl hydroxylamine and Biomimetic Catalytic Performance in Epoxidation of Styrene over Its Manganese(Ⅲ)Complex

作　　者：李建章[1] 阳华[1] 秦圣英[1] 

机构地区：[1]四川大学化学学院,成都610064

出　　处：《应用化学》2004年第2期109-112,共4页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金资助项目 ( 2 0 0 72 0 2 5 );四川省教育厅重点科研项目

摘　　要：制备了标题化合物和它的锰 (Ⅲ )配合物MnL12 Cl;研究了锰 (Ⅲ )配合物在常温常压下对苯乙烯的催化环氧化反应 ,考查了反应温度、苯乙烯浓度、轴向配体种类、亚碘酰苯和催化剂用量以及配体芳环上取代基端基等对该仿生催化性能的影响。实验结果表明 ,在相同的优化条件下 ,与配体芳环上取代基端基为乙酰氧基的MnL22 Cl比较 ,端基为羟基的MnL12 Cl具有更高的催化活性 ,其苯乙烯转化率为 3 9 6% ,但环氧化选择性( 93 9% )则低于前者 ( 1 0 0 % )。The title compound and its manganese(Ⅲ)complex MnL 1 2Cl were prepared for catalytic epoxidation of styrene under the ambient temperature and pressure. The effects of reaction temperature, concentration of styrene, axial ligand, iodosobenzene and catalyst amount as well as the terminal group of the substituent bonded to the ligand on the biomimetic catalytic performance of the manganese(Ⅲ) complex were investigated. The result indicates that the catalytic activity(conv. of styrene 39.6%) of MnL 1 2Cl, which contains hydroxyl group (OH) as the terminal group of the substituent bonded to the ligand is higher than that of MnL 2 2Cl containing acetoxyl group (CH 3COO) as the terminal group, while the selectivity of epoxidation of MnL 1 2Cl (93.9%) is lower than that of MnL 2 2Cl (100%) under the same optimization condition.

关 键 词：异羟肟酸 锰(Ⅲ)配合物 仿生催化 苯乙烯环氧化 

分 类 号：O641.4[理学—物理化学]