Sustainable Epoxidation of Electron??Poor Olefins with Hydrogen Peroxide in Ionic Liquids and Recovery of the Products with Supercritical CO2

O Bortolini, S Campestrini, V Conte…

Index: Bortolini, Olga; Campestrini, Sandro; Conte, Valeria; Fantin, Giancarlo; Fogagnolo, Marco; Maietti, Silvia European Journal of Organic Chemistry, 2003 , # 24 p. 4804 - 4809

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Citation Number: 21

Abstract

Abstract An efficient procedure is described for the epoxidation of electron-deficient olefins, in particular Vitamin K 3 and analogues, with aqueous basic solutions of hydrogen peroxide in different ambient temperature ionic liquids (ILs)[bmim+][X−]{[bmim+]= 1-butyl-3- methylimidazolium;[X−]=[BF 4−],[CF 3 SO 3−],[PF 6−],[N (CF 3 SO 2) 2−]}. Various factors affecting epoxide yield (in the range 80− 99%), reaction rate and reproducibility have ...