Nafion-functionalized mesoporous MCM-41 silica shows high activity and selectivity for carboxylic acid esterification and Friedel-Crafts acylation reactions

被引：141

作者：

Alvaro, M ^{[1
]}

Corma, A ^{[1
]}

Das, D ^{[1
]}

Fornés, V ^{[1
]}

García, H ^{[1
]}

机构：

[1] Univ Politecn Valencia, Dept Quim, Inst Tecnol Quim, CSIC, Valencia 46022, Spain

来源：

JOURNAL OF CATALYSIS | 2005年 / 231卷 / 01期

关键词：

perfluorosulfonic acid; nafion; MCM-41; esterification; fatty acids; acylation; anisole;

D O I：

10.1016/j.jcat.2005.01.007

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：

Hybrid organic-inorganic MCM-41 silicas functionalized with perfluoroalkylsulfonic acid groups analogous to that of Nation were prepared in a simple single step by a condensation reaction between surface silanol groups of the mesoporous silicas and 1,2,2-trifluoro2-hydroxy-1-trifluoromethyl-ethane sulfonic acid Beta-sultone. The catalysts showed very high activity for the esterification of long-chain fatty acids with ethanol and high-molecular-weight alcohols with essentially complete selectivity at high conversion (> 95%). Acylation of anisole was also possible, with high selectivity for 4-methoxyacetophenone. The catalysts showed more activity conversion than commercial Nafion-silica composite catalysts. (c) 2005 Elsevier Inc. All rights reserved.

引用

页码：48 / 55

页数：8

共 4 条

[1] Friedel-Crafts alkylation of aromatics with benzyl alcohols catalyzed by rare earth metal triflates supported on MCM-41 mesoporous silica
Mantri, K
Komura, K
Kubota, Y
Sugi, Y
[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2005, 236 (1-2) : 168 - 175
[2] MESOPOROUS ALUMINOSILICATE MCM-41 AS A CONVENIENT ACID CATALYST FOR FRIEDEL-CRAFTS ALKYLATION OF A BULKY AROMATIC COMPOUND WITH CINNAMYL ALCOHOL
ARMENGOL, E
CANO, ML
CORMA, A
GARCIA, H
NAVARRO, MT
[J]. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1995, (05) : 519 - 520
[3] Chiral copper(II) bisoxazoline covalently anchored to silica and mesoporous MCM-41 as a heterogeneous catalyst for the enantioselective Friedel-Crafts hydroxyalkylation
Corma, A
García, H
Moussaif, A
Sabater, MJ
Zniber, R
Redouane, A
[J]. CHEMICAL COMMUNICATIONS, 2002, (10) : 1058 - 1059
[4] Single-step preparation and catalytic activity of mesoporous MCM-41 and SBA-15 silicas functionalized with perfluoroalkylsulfonic acid groups analogous to Nafion®
Alvaro, M
Corma, A
Das, D
Fornés, V
García, H
[J]. CHEMICAL COMMUNICATIONS, 2004, (08) : 956 - 957

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