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Preparation of benzyne complexes of group 10 metals by intramolecular Suzuki coupling of ortho -metalated phenylboronic esters: Molecular structure of the first benzyne-palladium(0) complex.

Retboll, Mikael; Edwards, Alison; Rae, A David; Willis, Anthony; Bennett, Martin; Wenger, Eric


A series of nickel(II) and palladium(II) aryl complexes substituted in the ortho position of the aromatic ring by a (pinacolato)boronic ester group, [MBr{o-C6H4B(pin)}L2] (M = Ni, L2 = 2PPh3 (2a), 2PCy3 (2b), 2PEt3 (2c), dcpe (2d), dppe (2e), and dppb (2f); M = Pd, L2 = 2PPh3 (3a), 2PCy3 (3b), and dcpe (3d)), has been prepared. Many of these complexes react readily with KOtBu to form the corresponding benzyne complexes [M(η2-C6H4)L2] (M = Ni, L2 = 2PPh3 (4a), 2PCY3 (4b), 2PEt3 (4c), dcpe (4d);...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
Source: Journal of the American Chemical Society
DOI: 10.1021/ja0264091


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