The preparation and characterization of second-generation electron-poor Pt(II) complexes of general formula [(P-P)Pt(C6F5)(H2O)][X], 1a-h (P-P ) diphosphine, X ) BF4, OTf), bearing a pentafluorophenyl ligand is reported. The complexes are investigated as catalysts in the epoxidation of alkenes with hydrogen peroxide in a chlorinated solvent/H2O two-phase system. The effects of the P-P ligands and of the Lewis acidity of the metal species are discussed with respect to the catalytic activity in the epoxidation reaction.
Second Generation of Electron Poor Pt(II) Complexes as Efficient Epoxidation Catalysts for Terminal Alkenes with Hydrogen Peroxide
SCARSO, Alessandro;STRUKUL, Giorgio
2006-01-01
Abstract
The preparation and characterization of second-generation electron-poor Pt(II) complexes of general formula [(P-P)Pt(C6F5)(H2O)][X], 1a-h (P-P ) diphosphine, X ) BF4, OTf), bearing a pentafluorophenyl ligand is reported. The complexes are investigated as catalysts in the epoxidation of alkenes with hydrogen peroxide in a chlorinated solvent/H2O two-phase system. The effects of the P-P ligands and of the Lewis acidity of the metal species are discussed with respect to the catalytic activity in the epoxidation reaction.File in questo prodotto:
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