Highly Tactic Cyclic Polynorbornene: Stereoselective Ring Expansion Metathesis Polymerization of Norbornene Catalyzed by a New Tethered Tungsten-Alkylidene Catalyst
The tungsten alkylidyne [ t BuOCO]WC( t Bu) (THF)2 (1) reacts with CO2, leading to complete cleavage of one CO bond, followed by migratory insertion to generate the tungsten-oxo alkylidene 2. Complex 2 is the first catalyst to polymerize norbornene via ring expansion metathesis polymerization to...
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Published in | Journal of the American Chemical Society Vol. 138; no. 15; pp. 4996 - 4999 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
American Chemical Society
20.04.2016
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Online Access | Get full text |
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Summary: | The tungsten alkylidyne [ t BuOCO]WC( t Bu) (THF)2 (1) reacts with CO2, leading to complete cleavage of one CO bond, followed by migratory insertion to generate the tungsten-oxo alkylidene 2. Complex 2 is the first catalyst to polymerize norbornene via ring expansion metathesis polymerization to yield highly cis-syndiotactic cyclic polynorbornene. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0002-7863 1520-5126 |
DOI: | 10.1021/jacs.6b00014 |