Improving Catalytic Activity by Synergic Effect between Base and Acid Pairs in Hierarchically Porous Chitosan@Titania Nanoreactors

被引：32

作者：

El Kadib, Abdelkrim ^{[1
,2
]}

Molvinger, Karine ^{[1
]}

Bousmina, Mosto ^{[2
]}

Brunel, Daniel ^{[1
,3
]}

机构：

[1] Inst Charles Gerhardt, CNRS ENSCM UM2 UM1, UMR 5253, F-34296 Montpellier 5, France

[2] Inst Nanomat & Nanotechnol INANOTECH ENSET, Rabat 10100, Morocco

[3] Univ Politecn Valencia, CSIC, Inst Tecnol Quim UPV, Valencia 46022, Spain

来源：

ORGANIC LETTERS | 2010年 / 12卷 / 05期

关键词：

HETEROGENEOUS CATALYSIS; ONE-POT; COOPERATIVE CATALYSIS; MESOPOROUS MATERIALS; HENRY REACTIONS; BIFUNCTIONAL CATALYSTS; FUNCTIONAL-GROUPS; GREEN CHEMISTRY; FINE CHEMICALS; SITE ISOLATION;

D O I：

10.1021/ol9029319

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The beneficial effect of the bifunctional character of the chitosan@titania hybrid in heterogeneous catalysis was elucidated: considering a prototypical Henry condensation, Michael addition, and Jasminaldehyde synthesis, the cohabitation of a basic site (NH(2)) and an acidic site (Ti) in the same reactor provided clear activity and selectivity enhancements, with respect to the monofunctional acidic titania and basic chitosan counterparts.

引用

页码：948 / 951

页数：4

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