H2O2/NaHCO3-mediated enantioselective epoxidation of olefins in NTf2-based ionic liquids and under ultrasound
作者:Gregory Chatel、Catherine Goux-Henry、Anaïs Mirabaud、Thomas Rossi、Nathalie Kardos、Bruno Andrioletti、Micheline Draye
DOI:10.1016/j.jcat.2012.04.016
日期:2012.7
The bicarbonate-activated peroxide (BAP) system has been shown to constitute an excellent and versatile combination for the epoxidation of olefins. Herein, we demonstrate that the benign H2O2/NaHCO3 oxidative combination can be used for the enantioselective epoxidation of olefins using a chiral manganese porphyrin as a catalyst. This unprecedented result was made possible by the use of an ionic liquid with ultrasound, which leads to the activation of Mn-porphyrin catalysis. (C) 2012 Elsevier Inc. All rights reserved.