Surface versus molecular siloxy ligands in well-defined olefin metathesis catalysts:: [{(RO)3SiO}Mo(=NAr)(=CHtBu)(CH2tBu)]

被引：121

作者：

Blanc, F

Copéret, C

Thivolle-Cazat, J

Basset, JM

Lesage, A

Emsley, L

Sinha, A

Schrock, RR

机构：

[1] ESCPE Lyon, CNRS, UMR 9986, Lab Chim Organomet Surface, F-69616 Villeurbanne, France

[2] Ecole Normale Super Lyon, Chim Lab, CNRS, UMR 5532,Lab Rech Convent,DSM 0432, F-69364 Lyon 07, France

[3] MIT, Dept Chem, Cambridge, MA 02139 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2006年 / 45卷 / 08期

关键词：

carbene ligands; heterogeneous catalysis; metathesis; molybdenum;

D O I：

10.1002/anie.200503205

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Surface organometallic chemistry: Similar electronic properties of molecular and surface siloxy ligands in 1 m and 1 were revealed by a structural investigation with solid-state NMR spectroscopy and a reactivity study in olefin metathesis. Despite similar initial turnover frequencies, the silica-supported catalyst 1 is more stable than 1 m and allows it to achieve higher turnovers, thus showing the advantage of site isolation on surfaces. (Figure Presented) © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：1216 / 1220

页数：5

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