H₂O₂/NaHCO₃-mediated enantioselective epoxidation of olefins in NTf₂-based ionic liquids and under ultrasound

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• 作者：Gregory Chatel^a ; ^b ; Catherine Goux-Henry^b ; Anaï ; s Mirabaud^a ; Thomas Rossi^a ; Nathalie Kardos^a ; Bruno Andrioletti^b ; ^{bruno.andrioletti@univ-lyon1.fr} ; Micheline Draye^a ; ^{micheline.draye@univ-savoie.fr}
• 关键词：Epoxidation ; Ionic liquids ; Ultrasound ; Enantioselective catalysis ; Mn-porphyrin
• 刊名：Journal of Catalysis
• 出版年：2012
• 期刊代码：97_00219517
• 类别：ce
• 出版时间：July, 2012
• 卷：291
• 期：Complete
• 页码：127-132
• 文件大小：465 K

摘要

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.