Mesoporous Organosilicas with Acidic Frameworks and Basic Sites in the Pores: An Approach to Cooperative Catalytic Reactions

被引:163
作者
Shylesh, Sankaranarayanapillai [1 ]
Wagener, Alex [1 ]
Seifert, Andreas [2 ]
Ernst, Stefan [1 ]
Thiel, Werner R. [1 ]
机构
[1] TU Kaiserslautern, Fachbereich Chem, Kaiserslautern, Germany
[2] TU Chemnitz, Inst Chem, Chemnitz, Germany
关键词
bifunctional catalysts; domino reactions; heterogeneous catalysis; mesoporous materials; silicates; ORGANIC FUNCTIONAL-GROUPS; ONE-POT SYNTHESIS; MULTIFUNCTIONAL HETEROGENEOUS CATALYST; EFFICIENT NANOPOROUS CATALYSTS; ALPHA-ALKYLATED NITRILES; NITROALDOL CONDENSATION; SILICA NANOPARTICLES; TANDEM CATALYSIS; SOLID CATALYSTS; MOLECULAR-SCALE;
D O I
10.1002/anie.200903985
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Two In one: A periodic mesoporous phenylene silica (PMO) with acidic framework walls and basic pore channels was obtained by using protecting-group techniques. This approach allows location of the acidic groups in the hydrophobic benzene layers and of the amine groups in the hydrophilic silica layers. The afunctional material is an efficient catalyst for the tandem conversion of benzaldehyde dimethyl acetal into 2-nitrovinylbenzene (see scheme). chemical equation presentation ©2010 Wiley-VCH Verlag GmbH &. Co. KGaA, Weinheim.
引用
收藏
页码:184 / 187
页数:4
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