Metalloporphyrin covalently bound to silica. Preparation, characterization and catalytic activity in oxidation of ethyl benzene

被引：61

作者：

Ghiaci, Mehran ^{[1
]}

Molaie, Fatemeh ^{[1
]}

Sedaghat, Mohammad E. ^{[1
]}

Dorostkar, Nasim ^{[1
]}

机构：

[1] Isfahan Univ Technol, Dept Chem, Esfahan 8415683111, Iran

来源：

CATALYSIS COMMUNICATIONS | 2010年 / 11卷 / 08期

关键词：

Manganese porphyrin; Immobilization; Ethyl benzene; tert-Butyl hydroperoxide; Hydrogen peroxide; SELECTIVE OXIDATION; ETHYLBENZENE; ALKYLARENES; ALKANES; OXYGEN;

D O I：

10.1016/j.catcom.2010.01.023

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：

Manganese(III) porphyrin complexes [Mn(TMCPP)] [TMCPP: 5, 10, 15, 20-tetrakis (4-methoxy carbonyl phenyl) porphyrin [ were grafted on the organo-functionalized silica gel. This new catalyst was characterized by UV-Vis. FTIR, surface area measurements and elemental analysis, and it was used as catalyst in the oxidation of ethyl benzene by different oxidants such as hydrogen peroxide. The manganese porphyrin catalyst proved to be efficient and selective for synthesis of acetophenone. This catalyst showed a reasonable conversion (48%), and excellent selectivity (96.6%), when tert-butyl hydroperoxide in organic solvent was used as oxidant. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：694 / 699

页数：6

共 16 条

[1]

BATTIONI P, 1996, J CHEM SOC CHEM COMM, V341, P1186

[2] Low temperature activation of benzylic C-H bonds with heterogeneous Fe/MgO catalyst under atmospheric molecular oxygen [J].