Unsaturated NHC Complexes Immobilized by the Backbone: Synthesis and Application

被引：12

作者：

Li, Peng ^{[1
]}

Herrmann, Wolfgang A. ^{[1
]}

Kuehn, Fritz E. ^{[1
,2
]}

机构：

[1] Tech Univ Munich, Chair Inorgan Chem, D-85747 Garching, Germany

[2] Tech Univ Munich, Catalysis Res Ctr, D-85747 Garching, Germany

来源：

CHEMCATCHEM | 2013年 / 5卷 / 11期

关键词：

heterogeneous catalysis; hybrid material; hydrogenation; carbenes; rhodium; N-HETEROCYCLIC CARBENES; OLEFIN-METATHESIS; CATALYTIC-PROPERTIES; SUPPORTED CATALYSTS; RHODIUM COMPLEXES; HYDROFORMYLATION; SILICA; SPECTROSCOPY; REACTIVITY; PHOSPHINE;

D O I：

10.1002/cctc.201200837

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：

The synthesis and an exemplary catalytic application of a SBA-15-supported rhodium-N-heterocyclic carbene (NHC) complex is reported. In contrast to the conventional method of immobilization of unsaturated NHC complexes, the rhodium-NHC compound described here is connected to the SBA-15 surface by a linker originating from the backbone of the unsaturated NHC ligand. The unique characteristics of the new immobilization mode enable the supported NHC complexes to maintain two unchanged wing-tip ligands. This method of immobilization of unsaturated NHC complexes provides a new way to maintain the original configuration of homogeneous NHC complexes in the heterogenized catalytic system. The immobilized rhodium-NHC catalyst is used in a hydrogenation reaction with styrene as substrate.

引用

页码：3324 / 3329

页数：6

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