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Nucleophilic attack at pyridine nitrogen and its use to access a novel mono-anionic ligand for iron-based ethylene
Guy K B Clentsmith1, Vernon C Gibson, Peter B Hitchcock
1Dept of Chemistry, Imperial College, London, UK SW7 2AZ.
Chemical Communications (Cambridge, England)
|August 23, 2002
Abstract:
Addition of MeLi to bis(imino)pyridines results in an unprecedented nucleophilic attack at pyridine nitrogen to afford novel mono-anionic [N,N,N] ligands: their treatment with FeCl3, followed by MAO activation, affords highly active ethylene polymerisation catalysts.