MnO4-1 exchanged Mg-Al hydrotalcite:: a stable and reusable/environmental-friendly catalyst for selective oxidation by oxygen of ethylbenzene to acetophenone and dipheriylmethane to benzophenone

被引：89

作者：

Choudhary, VR ^{[1
]}

Indurkar, JR ^{[1
]}

Narkhede, VS ^{[1
]}

Jha, R ^{[1
]}

机构：

[1] Natl Chem Lab, Chem Engn & Proc Dev Div, Pune 411008, Maharashtra, India

来源：

JOURNAL OF CATALYSIS | 2004年 / 227卷 / 01期

关键词：

oxidation of ethylbenzene/diphenylmethane; hydrotalcite catalyst; acetophenone; benzopherione;

D O I：

10.1016/j.jcat.2004.07.017

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：

The liquid-phase selective oxidation of a methylene group attached to an aromatic ring by molecular oxygen to a carbonyl group, using MnO4-1 -exchanged Mg-Al hydrotalcite (Mg/Al = 2-10) has been investigated in the absence of solvent. The methylene-to-carbonyl group oxidation activity of the MnO4-1 -exchanged hydrotalcite, as well as the H2O2 decomposition activity and basicity of Mg-Al hydrotalcite increased with increasing Mg/Al ratio of the catalyst. The MnO4-1 -exchanged Mg-Al-hydrotalcite is a highly active and selective, stable, and reusable catalyst for the oxidation of ethylbenzene to acetophenone and diphenylmethane to benzophenone by molecular oxygen in the absence of solvent. The reaction catalyzed by this environmental-friendly catalyst is truly heterogeneous, without leaching of the active component(s) from the catalyst. The catalyst showed better performance after its first use in the oxidation of both ethylbenzene and diphenylmethane. (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：257 / 261

页数：5

共 26 条

[21] Selective oxidation of alkylarenes in dry media with potassium permanganate supported on montmorillonite K10 [J].

Shaabani, A ;

Bazgir, A ;

Teimouri, F ;

Lee, DG .

TETRAHEDRON LETTERS, 2002, 43 (29) :5165-5167

[22] FERRIC-CHLORIDE CATALYZED PHOTOOXIDATION OF ALKANES BY AIR IN ORGANIC-SOLVENTS [J].

SHULPIN, GB ;

KATS, MM .

REACTION KINETICS AND CATALYSIS LETTERS, 1990, 41 (02) :239-243

[23]

VALECHHA ND, 1984, J INDIAN CHEM SOC, V61, P909

[24] Generation of singlet molecular oxygen from H2O2 with molybdate-exchanged layered double hydroxides:: Effects of catalyst composition and reaction conditions [J].

van Laar, FMPR ;

De Vos, DE ;

Pierard, F ;

De Mesmaeker, AK ;

Fiermans, L ;

Jacobs, PA .

JOURNAL OF CATALYSIS, 2001, 197 (01) :139-150

[25]

VYAS SN, 1986, INDIAN CHEM ENG, V28, P44

[26] N-hydroxyphthalimide/cobalt(II) catalyzed low temperature benzylic oxidation using molecular oxygen [J].

Wentzel, BB ;

Donners, MPJ ;

Alsters, PL ;

Feiters, MC ;

Nolte, RJM .

TETRAHEDRON, 2000, 56 (39) :7797-7803

← 1 2 3 →