Sustainable Epoxidation of Electron‐Poor Olefins with Hydrogen Peroxide in Ionic Liquids and Recovery of the Products with Supercritical CO 2 | Zendy

Bortolini Olga | Zendy; Campestrini Sandro | Zendy; Conte Valeria | Zendy; Fantin Giancarlo | Zendy; Fogagnolo Marco | Zendy; Maietti Silvia | Zendy

Premium

Sustainable Epoxidation of Electron‐Poor Olefins with Hydrogen Peroxide in Ionic Liquids and Recovery of the Products with Supercritical CO 2

Author(s) -

Bortolini Olga,

Campestrini Sandro,

Conte Valeria,

Fantin Giancarlo,

Fogagnolo Marco,

Maietti Silvia

Publication year - 2003

Publication title -

european journal of organic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.825

H-Index - 155

eISSN - 1099-0690

pISSN - 1434-193X

DOI - 10.1002/ejoc.200300442

Subject(s) - ionic liquid , chemistry , supercritical fluid , hydrogen peroxide , epoxide , yield (engineering) , aqueous solution , inorganic chemistry , organic chemistry , green chemistry , catalysis , materials science , metallurgy

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 been examined. The almost quantitative extraction of the epoxides from the reaction media has been obtained with supercritical CO 2 . The ionic liquid was then recovered and reused in subsequent cycles. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research