期刊
ORGANIC LETTERS
卷 11, 期 6, 页码 1261-1264出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol9000153
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-
资金
- DOE [DE-FG02-08ER15933]
- NSERC of Canada
Two triethoxysilyl-functionalized N-heterocyclic carbene ligands have been synthesized and used to prepare the corresponding second-generation ruthenium olefin metathesis catalysts. These complexes were then grafted onto silica gel, and the resulting materials were efficient heterogeneous catalysts for a number of metathesis reactions. The solid-supported catalysts were shown to be recyclable over a number of reaction cycles, and no detectable levels of ruthenium were observed in reaction filtrates (ruthenium concentration of filtrate <5 ppb).
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