The synthesis and spectroscopic characterization of the new hydroxo-bridged platinum(II) complex [P(mu-OH)(Pom-Pom)]2 [BF4]2 (3) containing the electron-poor P-P ligand 1,2-bis(dimethoxyphosphino)ethane, (OMe)2PCH2CH2P(OMe)2 (Pom-Pom), is reported. This compound has been used in the Baeyer-Villiger oxidation of a series of cyclic ketones using 35% hydrogen peroxide as oxidant. The reactions were performed at 25 degrees C and at 70 degrees C in chlorinated solvent/H2O biphasic system. The catalytic activity and the Lewis acidity of the complex (3) has been compared to other Pt(II) complexes previously investigated. (c) 2006 Elsevier B.V. All rights reserved.
Synthesis, characterization and Baeyer-Villiger oxidation of ketones by the bis-cationic platinum(II) complex [Pt(mu-OH)(Pom-Pom)(2)[BF4](2) [Pom-Pom = (OMe)(2)PCH2CH2P(OMe)(2)]
SGARBOSSA, PAOLO;MAZZEGA, SILVIA;TASSAN, AUGUSTO;MICHELIN, RINO;
2007
Abstract
The synthesis and spectroscopic characterization of the new hydroxo-bridged platinum(II) complex [P(mu-OH)(Pom-Pom)]2 [BF4]2 (3) containing the electron-poor P-P ligand 1,2-bis(dimethoxyphosphino)ethane, (OMe)2PCH2CH2P(OMe)2 (Pom-Pom), is reported. This compound has been used in the Baeyer-Villiger oxidation of a series of cyclic ketones using 35% hydrogen peroxide as oxidant. The reactions were performed at 25 degrees C and at 70 degrees C in chlorinated solvent/H2O biphasic system. The catalytic activity and the Lewis acidity of the complex (3) has been compared to other Pt(II) complexes previously investigated. (c) 2006 Elsevier B.V. All rights reserved.
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