A novel transformation of a zirconium imido compound and the development of a new class of N3 donor heteroscorpionate ligand

Robert G. Howe; Cara S. Tredget; Sally C. Lawrence; Suparabhorn Subongkoj; Andrew R. Cowley; Philip Mountford

doi:10.1039/B513927A

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A novel transformation of a zirconium imido compound and the development of a new class of N₃ donor heteroscorpionate ligand†

Robert G. Howe,^a Cara S. Tredget,^a Sally C. Lawrence,^a Suparabhorn Subongkoj,^a Andrew R. Cowley^a and Philip Mountford*^a

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* Corresponding authors

^a Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, UK
E-mail: philip.mountford@chem.ox.ac.uk

Abstract

Reaction of the dimeric zirconium imido compound [Zr₂(μ-NAr)₂Cl₄(THF)₄] with tris(3,5-dimethylpyrazolyl)methyl silane very selectively gave [Zr{(Me₂pz)₂Si(Me)NAr}Cl₃] (1), a highly active pre-catalyst for ethylene polymerisation; a more general and versatile route to N₃ donor heteroscorpionate compounds was achieved via the protio ligand (Me₂pz)₂CHSi(Me)₂N(H)ⁱPr for which neutral and cationic organometallic Group 3 and 4 derivatives are reported (Ar = 2,6-C₆H₃ⁱPr₂).

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Article information

DOI: https://doi.org/10.1039/B513927A
Article type: Communication
Submitted: 30 Sep 2005
Accepted: 25 Oct 2005
First published: 21 Nov 2005

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Chem. Commun., 2006, 223-225

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A novel transformation of a zirconium imido compound and the development of a new class of N₃ donor heteroscorpionate ligand

R. G. Howe, C. S. Tredget, S. C. Lawrence, S. Subongkoj, A. R. Cowley and P. Mountford, Chem. Commun., 2006, 223 DOI: 10.1039/B513927A

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