Reaction of (Butadiene)zirconocene with Tris(pentafluorophenyl)borane—A Novel Way of Generating Methylalumoxane-Free Homogeneous Ziegler-Type Catalysts


  • This work was supported by the Fonds der Chemischen Industrie, the Alfried-Krupp-von-Bohlen-und-Halbach-Stiftung, the Ministerium für Wissenschaft und Forschung des Landes Nordrhein-Westfalen, and the Hoechst AG.


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An active catalyst for α-olefin polymerization without addition of activator components has been discovered in the betain 2, which is formed in the title reaction shown below. Laser desorption mass spectrometry shows that B(C6F5)3-containing polymers with a molecular weight distribution typical of Ziegler catalysts are formed.