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Article Dans Une Revue Phosphorus, Sulfur, and Silicon and the Related Elements Année : 1996

Diphosphirenium Salt: A New Versatile Ligand

Résumé

Strained aromatic cyclopropenylium cations are versatile ligands for transition metal complexes: η1-, η 2- and η3-coordination modes have been observed. Here we report on the ligand properties of the related diphosphirenium salt A[1]. Treatment of a dichloromethane solution of diphosphirenium salt A with an equimolar amount of palladium tetrakis(mpheny1phosphine) afforded 1,3-diphospha-2-bis(uiphenyl-phosphine)pallada(II)cyclobutene B in 70% yield. Exchange of the triphenylphosphine ligands occurs with various phosphines, and the structures of these new diphospha-metallacyclobutenes have been elucidated by NMR and in one case by a single X-ray diffraction study [2].
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hal-03739850 , version 1 (28-07-2022)

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Yves Canac, G. Bouhadir, R. Reau, A. Baceiredo, G. Bertr. Diphosphirenium Salt: A New Versatile Ligand. Phosphorus, Sulfur, and Silicon and the Related Elements, 1996, 111 (1), pp.53-53. ⟨10.1080/10426509608054682⟩. ⟨hal-03739850⟩
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