Chiral salen Mn(III) complexes immobilized onto crystalline aluminium oligo-styrenyl phosphonate-hydrogen phosphate (AlSPP) for heterogeneous asymmetric epoxidation

被引：17

作者：

Huang, Xuemei ^{[1
]}

Fu, Xiangkai ^{[1
]}

Jia, Ziyong ^{[1
]}

Miao, Qiang ^{[1
]}

Wang, Guoming ^{[1
]}

机构：

[1] Southwest Univ, Key Lab Ecoenvironm Three Gorges Reservoir Reg, Coll Chem & Chem Engn,Res Inst Appl Chem, Key Lab Appl Chem Chongqing Municipal,Minist Educ, Chongqing 400715, Peoples R China

来源：

CATALYSIS SCIENCE & TECHNOLOGY | 2013年 / 3卷 / 02期

关键词：

HIGHLY ENANTIOSELECTIVE EPOXIDATION; CATALYTIC EPOXIDATION; ALKENE EPOXIDATION; JACOBSEN CATALYST; MODIFIED MCM-41; OLEFINS; ZIRCONIUM; EFFICIENT; SBA-15; CLAY;

D O I：

10.1039/c2cy20394d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel type of organic polymer-inorganic hybrid material layered crystalline aluminium oligo-styrenyl phosphonate-hydrogen phosphate (AlSPP) was designed and prepared in the absence of any template. The chiral salen Mn(III) complex immobilized onto alkoxy-modified AlSPP was synthesized and characterized by FT-IR, diffusion reflection UV-vis, AAS, N-2 volumetric adsorption, SEM, TEM, XRD, TG and AFM. The supported catalysts displayed superior catalytic activities in the asymmetric epoxidation of alpha-methylstyrene and indene with m-CPBA as an oxidant. Delightfully, the heterogeneous catalysts afforded a remarkable increase in conversion and ee values without the expensive O-coordinating axial bases for the asymmetric epoxidation of olefins. The catalysts can be easily recovered and reused with a slight decrease in activity and enantioselectivity after ten cycles. Furthermore, they could also be efficiently used in large-scale reactions with the enantioselectivity being maintained at the same level, which provided the potentiality for application in industry.

引用

页码：415 / 424

页数：10