Ruthenium(II) complexes containing both arene and functionalized phosphines. Synthesis and catalytic activity for the hydrogenation of styrene and phenylacetylene
作者： Isabel Moldes , Esther de la Encarnación , Josep Ros , Ángel Alvarez-Larena , Joan F Piniella
DOI: 10.1016/S0022-328X(98)00647-0
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摘要: Abstract The [RuCl2(η6-arene)]2 complex reacts with PPh2R (R=H, Py, CH2Py, CCPh, CCtBu and CCp-Tol) ligands in CH2Cl2 to give neutral P-coordinated ruthenium(II) complexes [RuCl2(p-cymene)PPh2R]. structure of [RuCl2(p-cymene)PPh2H] [RuCl2(p-cymene)PPh2Py] has been established by X-ray diffraction. [RuCl2(p-cymene)PPh2CH2Py] react NaBF4 CH2Cl2–MeOH mixture [RuCl(η6-p-cymene)PPh2Py]BF4 [RuCl(η6-p-cymene)PPh2CH2Py]BF4 complexes, which PPh2Py PPh2CH2Py act as bidentate ligands. was determined reaction PPh2CCPPh2 led the [RuCl2(p-cymene)]2PPh2CCPPh2 complex, diphosphine ligand bridges two [RuCl2(p-cymene)] units. are suitable catalyst precursors for hydrogenation styrene phenylacetylene.
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