Asymmetric α-hydroxy ketone synthesis by direct ketone oxidation using a bimetallic palladium(II) complex
作者:Othman A. Hamed、Arab El-Qisairi、Hanan Qaseer、Emad M. Hamed、Patrick M. Henry、Daniel P. Becker
DOI:10.1016/j.tetlet.2012.03.066
日期:2012.5
The oxidation of ketones by a chiral bimetallic palladium(II) complex in the presence of CuCl2 in THF–water solvents gave an enantioselective synthesis of α-hydroxyketones in catalytic oxidation utilizing an atmosphere of oxygen. The ee’s ranged from 61% to 92%. The reaction was accelerated by addition of strong acid that presumably increases the rate of enolization.