Site-isolated porphyrin catalysts in imprinted polymers

被引：52

作者：

Burri, E ^{[1
]}

Öhm, M ^{[1
]}

Daguenet, C ^{[1
]}

Severin, K ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Sci & Ingn Chim, CH-1015 Lausanne, Switzerland

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2005年 / 11卷 / 17期

关键词：

heterogeneous catalysis; molecular imprinting; oxidation; prophyrin complexes; ruthenium;

D O I：

10.1002/chem.200500375

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A meso-tetraaryl ruthenium porphyrin complex having four polymerizable vinylbenzoxy groups (2) has been synthesized by reaction of pyrrole with 4-(vinylbenzoxy)benzaldehyde and subsequent metalation with [Ru-3(CO)(12)]. The porphyrin complex was immobilized by copolymerization with ethylene glycol dimethacrylate. The resulting polymer P2 was found to catalyze the oxidation of alcohols alkanes with 2,6-dichloropyridine N-oxide without activation by mineral acids. Under similar conditions, the homogeneous catalyst 2 was completely inefficient. By using diphenylamino-methane and 1-aminoadamantane as coordinatively bound templates during the polymerization procedure, the molecularly imprinted polymers P3 and P4 have been synthesized. Compared with the polymer P2, the imprinted catalysts displayed a significantly increased activity with rate enhancements of up to a factor of 16.

引用

页码：5055 / 5061

页数：7

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