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

被引：142

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

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