Unusual reactivity of a nickel N-heterocyclic carbene complex: tert-butyl group cleavage and silicone grease activation

Caddick, Stephen, Cloke, F Geoffrey N, Hitchcock, Peter B and Lewis, Alexandra K de K (2004) Unusual reactivity of a nickel N-heterocyclic carbene complex: tert-butyl group cleavage and silicone grease activation. Angewandte Chemie International Edition, 43 (43). pp. 5824-5827. ISSN 1433-7851

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Abstract

Reaction lubrication? The reaction between [Ni(1,5-cod)2] (cod=cyclooctadiene) and 1,3-bis-tert-butylimidazol-2-ylidene in the presence of silicone grease affords the siloxane bridged dimer [{Ni[C(NtBuCH) 2][O(Me2SiOSiMe2)-µ-O]}2]. In a greaseless apparatus, the same reaction yields the dimer 1 (see structure), via two structurally characterized intermediates.

Item Type: Article
Additional Information: Times Cited: 9; Keywords: C-N activation; metal-metal bonds; N-heterocyclic carbenes; nickel; siliconeHECK-TYPE REACTIONS; OXIDATIVE ADDITION; AROMATIC CHLORIDES; ARYLCHLORIDES; PALLADIUM; METAL; AMINATION; CATALYSTS; AMIDO; BONDISI:000225204100021
Schools and Departments: School of Life Sciences > Chemistry
Depositing User: Geoff Cloke
Date Deposited: 06 Feb 2012 20:59
Last Modified: 07 Jun 2012 15:18
URI: http://sro.sussex.ac.uk/id/eprint/28975
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