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Title: Mono cationic palladium(II): Synthesis, characterization and catalytic activity in Suzuki coupling
Authors: Pratihar S.
Marek J.
Roy S.
Keywords: Catalysis
Cationic complexes
Palladium compounds
Phosphine ligand
Suzuki coupling
Issue Date: 2011
Citation: 6
Abstract: Monocationic five and four-coordinate PdII complexes have been synthesized in a facile manner involving the reaction of (COD)PdCl2 with AgPF6 and a nitrogen or phosphorus ligand. Complexes synthesized via this route are five coordinate [PdCl(2,9-Me2Phen) 2]PF6 2 and four coordinate [L3PdCl]PF 6 (L = PPh3, 3; P(p-Tol)3, 4; P(OEt) 3; 5). ESI-MS studies at varying cone-voltage indicated ligand dissociation depending upon ligand cone-angle. A halo-bridged complex [PdCl(?-Cl){P(p-Tol)3}]2 7 has been isolated from 4 in methanol. The cationic complexes have been screened as catalyst in Suzuki coupling involving aryl halide and phenylboronic acid. Complex 4 showed appreciable turnover. � 2011 Elsevier B.V. All rights reserved.
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