Quinolyl-functionalised Cp-chromium polymerisation catalysts: synthesis and crystal structures of alkylation products |
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| Authors: | Markus Enders,Pablo Ferná ndez,Hans Pritzkow |
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| Affiliation: | a Anorganisch-Chemisches Institut der Universität, im Neuenheimer Feld 270, 69120 Heidelberg, Germany
b Basell Polyolefins GmbH, Research Laboratory, Basell-M505, D-67056 Ludwigshafen, Germany |
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| Abstract: | The quinolyl-functionalised Cp-chromium(III) complexes 1 and 2, which serve as precursors for highly active olefin polymerisation catalysts, were alkylated with benzylmagnesium chloride. From these reactions, the new metal complexes 4, 5 and 6 were obtained and structurally characterised. The expected alkylchromium compound 4 is formed together with complex 5, where the nucleophile replaced a hydrogen atom at the quinoline substituent. The dinuclear complex 6 is formed by nucleophile addition, rearrangement and dimerisation. |
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| Keywords: | Chromium Donor-functionalised Cp-ligands Olefin polymerisation Catalyst activation |
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