丙氨酸席夫碱锰配合物催化环己烯的空气环氧化  

Catalytic Epoxidation of Cyclohexene by Alanine Schiff Base Complex(Sal-Ala-Mn)

作　　者：韩建萍[1] 赵继全[1] 陆敬国[1] 张月成[1] 

机构地区：[1]河北工业大学化工学院,天津300130

出　　处：《应用化学》2004年第11期1136-1140,共5页Chinese Journal of Applied Chemistry

基　　金：河北省自然科学基金资助项目(200008)

摘　　要：利用丙氨酸和水杨醛合成了席夫碱Mn(Ⅲ)配合物(SalAlaMn)。以分子氧为氧源,异丁醛为共还原剂,考察了反应温度、时间、催化剂量、异丁醛量、溶剂量对SalAlaMn催化环己烯环氧化反应催化性能的影响。结果表明,最佳反应条件即环己烯25mL,催化剂01mmol,异丁醛45mL,乙腈60mL,温度35℃,反应时间10h时,环己烯的转化率为983%,环氧环己烷的选择性为706%。The alanine Schiff base Mn(Ⅲ) complex(Sal Ala Mn) was synthesized from Mn(OAC) 2 and the ligand obtained from the reaction of alanine with salicylaldehyde. The effects of reaction temperature and time, amounts of catalyst and isobutylaldehyde, volume of solvent on the aerobic epoxidation of cyclohexene were studied. The conversion of cyclohexene was 98 3% with a selectivity of 70 6% of cyclohexene epoxide when 2 5 mL of cyclohexene, 0 1 mmol of catalyst , 4 5 mL of isobutylaldehyde and 60 mL of acetonitrile...

关 键 词：丙氨酸 席夫碱锰配合物 环己烯 空气环氧化 分子氧 

分 类 号：O643.3[理学—物理化学]