Biomimetic Alkene Epoxidation and Alkane Hydroxylation with Sodium Periodate Catalyzed by Mn(III)-salen Supported on Amberlite IRA-200
作者:Valiollah Mirkhani、Majid Moghadam、Shahram Tangestaninejad、Bahram Bahramian
DOI:10.1007/s00706-007-0672-8
日期:2007.12
for the oxidation of alkenes and alkanes with sodium periodate at room temperature in the presence of imidazoles as axial ligands, and the effect of solvent, different axial ligands, and various oxygen donors was investigated. This heterogenized catalyst shows high catalytic activity in alkene epoxidation and alkane hydroxylation. It showed high selectivity in the epoxidation of stilbenes, α-pinene
通过 静电结合负载在Amberlite IRA-200上的 salen 配体 的5,5'-位置上含有phospho基 的Mn(III) -salen 用于在室温下在存在高碘酸钠的条件下氧化烯烃和烷烃咪唑作为轴向配体的研究,以及溶剂,不同轴向配体和各种供氧体的影响。这种异质催化剂在烯烃环氧化和烷烃羟基化中显示出高催化活性。它在对苯乙烯,α-pine烯和( R )-(+)-柠檬烯的环氧化中显示出很高的选择性 ,并且具有环氧化线性烯烃的特殊能力。这种新型异质金属的稳定性和可重复使用性 Salen 复合体也进行了调查。通过FTIR,UV-Vis,SEM和热分析对催化剂进行表征。