Titlebook: Metathesis Polymerization of Olefins and Polymerization of Alkynes; Yavuz Imamoglu Book 1998 Springer Science+Business Media Dordrecht 199

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F. Stelzer,R. Schitter,Th. Steinhäuslerrcen (aka Wissen) der Entscheidungsträger:innen innerhalb von Organisationen betont. Wissensprobleme respektive mangelnde Kognitionen gelten als erkenntnistheoretische Hindernisse für strategisches Handeln. Zur Erzeugung eines besseren Verständnisses von Entscheidungsfindungen in Situationen variabl

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The Use of Non-Traditional Catalysts in the Romp of Cycloolefinss of W or Mo (usually WCl.) and organometallic derivatives of Al, Sn, Li or Mg [1]. The main role of the latters is to alkylate the transition metal with the formation of σ-metal-carbon bond of relatively low stability. Although the decomposition of such organometallic compounds proceeds mostly via

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Ring-Opening Metathesis Polymerization of Cycloolefens Using Tungsten-Tetraphenylporphyrinate Cataly presence of recently reported catalytic systems consisting of tungsten-tetraphenylporphyrinate and aluminoxane, under inert atmosphere at room temperature, in aromatic solvents. The catalyst precursor was prepared by interaction of WCl. with free tetraphenylporphyrin in carbon tetrachloride and cha

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Metathesis Ring-Chain Equilibrium in Cyclobutene and 1-Methylcyclobutene Systems, acyclic diene metathesis of 1,5-hexadiene and the intramolecular metathesis degradation of 1,4-polybutadiene (1,4-BR) were studied intensely using several stable tungsten and molybdenum carbene complexes as well as classical metathesis catalyst. Focus of our interest was the determination of the s

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Olefin Cyclopropanation or Olefin Metathesis with Late Transition Metal Complexes?d rhodium-based complexes provide outstanding cyclopropanation catalysts, those two metals have no applications in olefin metathesis [1] Ruthenium-based complexes, on the other hand are known to mediate both olefin metathesis and/or cyclopropanation reactions [2], as sketched in scheme 1 for a cyclo

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Initiation, Propagation and Termination of Olefin Metathesis Reactionsalyst system containing a transition metal compound (precursor), frequently in conjunction with a second compound (cocatalyst) and sometimes a third (promoter). Transition metals carbenes formed in these systems trigger the transalkylidenation (i.e. metathesis) of olefins [1] The carbene mechanism [