Styrene epoxidation over a SBA-15-supported Mn(III) Schiff-base complex

被引：8
|
作者：
Sujandi
Park, Sang-Eon [1 ]
机构：
[1] Inha Univ, Dept Chem, Lab Nanogreen Catalysis, Inchon 402751, South Korea
来源：
RESEARCH ON CHEMICAL INTERMEDIATES | 2008年 / 34卷 / 8-9期
关键词：
Schiff base; Mn(III); SBA-15; epoxidation; styrene;
D O I：
10.1007/BF03036949
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
2,4-Di-tert-butyl-6-((E)-(propylimino)methyl)phenol as a Schiff-base ligand was immobilized onto an amino-functionalized SBA-15 through the reaction between di-tert-butyl-salicylaldahyde and the tethered amino group. The Mn(III) metal complex of the immobilized Schiff-base ligand was proven to be an active catalyst for the epoxidation of styrene with tert-butyl hydroperoxide as a terminal oxidant. The catalysts behaved as an oxidation catalyst in the epoxidation and could be used many times without structural degradation, leaching of active manganese species and significant activity loss. It has been concluded that the reversible redox cycles of the metal center play a key role during the epoxidation reaction, as well as in the reusability of the catalysts.
引用
收藏
页码：871 / 880
页数：10
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