Insertion of isocyanides into the palladium-(2-pyridyl) bond |
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Authors: | Antonio Mantovani Bruno Crociani |
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Affiliation: | Cattedre di Chimica, Facoltà di Ingegneria, University of Padova Padova Italy;Instituto de Chimica Generale, Via Archirafi 26, University of Palermo Palermo Italy |
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Abstract: | The reaction of the pyridyl-bridged binuclear complex [PdBr(μ-2-C5H4N)(PPh3)]2 with isocyynides CNR (R p-C6H4OMe, Me, C6H11) yields the complex {(&2.dbnd;NR)C(&2.dbnd;NR) (2-C5H4N)}(PPh3)] containing a C,N-chelated 1,2-bis(imino)-2-(2-pyridyl)ethyl group, which results from successive insertions of two isocyanides molecules into the palladium2-pyridyl bond. The mononuclear compound trans-[PdBr(2-C5H4N)(PMePh2)2] readily reacts with various CNR ligands (R p-C6H4OMe, Me, C6H11, CMe3) to give the imino(2-pyridyl)methylpalladium(II) derivatives, trans-[Pdbr{C(=NR)(2-C5H4N)} (PMePh2)2]. |
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