olefin metathesis wikipedia - EAS
- Olefin metathesis is an organic reaction that entails the redistribution of fragments of alkenes (olefins) by the scission and regeneration of carbon-carbon double bonds. Because of the relative simplicity of olefin metathesis, it often creates fewer undesired by-products and hazardous wastes than alternative organic reactions.Organic Chemistry Portal: olefin-metathesisRSC ontology ID: RXNO:0000280
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See all on Wikipediahttps://en.wikipedia.org/wiki/Olefin_metathesisOlefin metathesis is an organic reaction that entails the redistribution of fragments of alkenes (olefins) by the scission and regeneration of carbon-carbon double bonds. Because of the relative simplicity of olefin metathesis, it often creates fewer undesired by-products and hazardous wastes than … See more
The reaction requires metal catalysts. Most commercially important processes employ heterogeneous catalysts. The heterogeneous catalysts are often prepared by in-situ activation of a metal halides (MClx) using See more
Some important classes of olefin metathesis include:
• Cross metathesis (CM)
• Ring-opening metathesis (ROM) See more"Olefin metathesis is a child of industry and, as with many catalytic processes, it was discovered by accident." As part of ongoing work in what would later become known as Ziegler–Natta catalysis Karl Ziegler discovered the conversion of ethylene See more
1. "Olefin Metathesis: Big-Deal Reaction". 80 (51). 2002: 29–33. doi:10.1021/cen-v080n016.p029. {{cite journal}}: Cite journal requires |journal= (help)
2. "Olefin Metathesis: The Early Days". 80 (51). 2002: 34–38. doi:10.1021/cen-v080n029.p034 See moreOlefin metathesis has several industrial applications. Almost all commercial applications employ heterogeneous catalysts using catalysts developed well before the Nobel-Prize winning work on homogeneous complexes. Representative processes include: See more
Hérisson and Chauvin first proposed the widely accepted mechanism of transition metal alkene metathesis. The direct [2+2] cycloaddition of two alkenes is formally symmetry forbidden and thus has a high activation energy. The Chauvin mechanism … See more
Wikipedia text under CC-BY-SA license- https://en.wikipedia.org/wiki/Carbonyl_olefin_metathesis
Carbonyl olefin metathesis is a type of metathesis reaction that entails, formally, the redistribution of fragments of an alkene and a carbonyl by the scission and regeneration of carbon-carbon and carbon-oxygen double bonds respectively. It is a powerful method in organic synthesis using simple carbonyls and olefins and converting them into less accessible products with higher structural complexity.
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- https://en.wikipedia.org/wiki/Talk:Olefin_metathesis
- I reorganized the article so the more basic, layman's information is first, followed by most of the technical jargon that would just drive off the average reader before they understand the significance of the reaction and why this particular bit of chemistry, among thousands of other discoveries, won a nobel prize. Duesling, calm down, eh? This is ...
- (Rated C-class, Mid-importance): …
- https://commons.wikimedia.org/wiki/Category:Olefin_metathesis
WebMedia in category "Olefin metathesis" The following 76 files are in this category, out of 76 total. 1,2-Dihydro-1,2-azaborine synthesis (abbreviated).png 713 × 118; 8 KB
Olefin metathesis - Wikipedia
https://wiki.alquds.edu/?query=Olefin_metathesisWebJul 09, 2022 · Olefin metathesis is an organic reaction that entails the redistribution of fragments of alkenes (olefins) by the scission and regeneration of carbon-carbon double …
- https://en.wikipedia.org/wiki/Ring-closing_metathesis
WebRing-closing metathesis is a widely used variation of olefin metathesis in organic chemistry for the synthesis of various unsaturated rings via the intramolecular metathesis of two …
- https://en.wikipedia.org/wiki/Alkyne_metathesis
WebAlkyne metathesis is an organic reaction that entails the redistribution of alkyne chemical bonds. The reaction requires metal catalysts. Mechanistic studies show that the …
- https://en.wikipedia.org/wiki/Ring-opening_metathesis_polymerisation
WebRing-opening metathesis polymerization is a type of olefin metathesis chain-growth polymerization. The driving force of the reaction is relief of ring strain in cyclic olefins. A …
- https://en.wikipedia.org/wiki/Enyne_metathesis
WebAn enyne metathesis is an organic reaction taking place between an alkyne and an alkene with a metal carbene catalyst forming a butadiene. This reaction is a variation of olefin …
- https://www.wikipedia.org/wiki/Olefin_metathesis
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