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Title: The scope of ambiphilic acetate-assisted cyclometallation with half-sandwich complexes of iridium, rhodium and ruthenium.
Authors: Boutadla, Y
Davies, DL
Jones, RC
Singh, K
First Published: 14-Mar-2011
Citation: CHEMISTRY, 2011, 17 (12), pp. 3438-3448
Abstract: C−−H activation by acetate-assisted cyclometallation of a phenyl group with half-sandwich complexes [{MCl(2)Cp*}(2)] (M=Ir, Rh) and [{RuCl(2)-(p-cymene)}(2)] can be directed by a wide range of nitrogen donor ligands including pyrazole, oxazoline, oxime, imidazole and triazole, and X-ray structures of a number of complexes are reported. All the ligands tested cyclometallated at iridium, however ruthenium and rhodium fail to cause cyclometallation in some cases. As a result, the nitrogen donors have been categorised based on their reactivity with the three metals used. The relevance of these cyclometallation reactions to catalytic synthesis of carbocycles and heterocycles is discussed.
DOI Link: 10.1002/chem.201002604
eISSN: 1521-3765
Type: Journal Article
Appears in Collections:Published Articles, Dept. of Chemistry

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