SBA-15 Immobilized Ruthenium Carbenes as Catalysts for Ring Closing Metathesis and Ring Opening Metathesis Polymerization

被引：23
|
作者：
Bek, David [1 ]
Zilkova, Nadezda [1 ]
Dedecek, Jiri [1 ]
Sedlacek, Jan [2 ]
Balcar, Hynek [1 ]
机构：
[1] Acad Sci Czech Republic, J Heyrovsky Inst Phys Chem, CR-18223 Prague 8, Czech Republic
[2] Charles Univ Prague, Fac Sci, Dept Phys & Macromol Chem, Prague 12840 2, Czech Republic
来源：
TOPICS IN CATALYSIS | 2010年 / 53卷 / 3-4期
关键词：
Ring closing metathesis; Ring opening metathesis polymerization; Hybrid catalysts; Ru catalysts; SBA-15; MESOPOROUS MOLECULAR-SIEVES; ELECTRON-WITHDRAWING LIGANDS; OLEFIN-METATHESIS; RHENIUM OXIDE; HOVEYDA-GRUBBS; CROSS-METATHESIS; SUPPORT; ALUMINA; REACTIVITY; MECHANISM;
D O I：
10.1007/s11244-009-9418-7
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
New hybrid catalysts for olefin metathesis were prepared by immobilization of Hoveyda-Grubbs type Ru alkylidenes on a siliceous SBA-15 support via exchange of chloro ligands for substituted carboxylates. Catalysts proved a high activity in ring closing metathesis of 1,7-octadiene and diethyl diallylmalonate, reusability and low Ru leaching. In Ring Opening Metathesis Polymerization of norbornene and cyclooctene, SBA-15 supported catalyst gave higher yields of high-molecular-weight polymers than corresponding catalyst with conventional silica support.
引用
收藏
页码：200 / 209
页数：10
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