title: Epoxidation of olefins with a silica-supported peracid in supercritical carbon dioxide under flow conditions.
abstract: Anhydrous 2-percarboxyethyl-functionalized silica (2b), a recyclable supported peracid, is a suitable reagent to perform the epoxidation of alkenes 1 in supercritical carbon dioxide at 250 bar and 40 °C under flow conditions. This procedure simplifies the isolation of the reaction products and uses only carbon dioxide as a solvent under mild conditions. The solid reagent 2b can be easily recycled by a reaction with 30% hydrogen peroxide in an acid medium.
authors.affiliation: Departamento de Quı́mica Orgánica, Facultad de Farmacia, Universidad de Valencia, Avda. Vicente Andrés Estellés s.n., 46100-Burjassot, Valencia, Spain.
authors.forename: Rossella
authors.initials: R
authors.lastname: Mello
authors.forename: Ana
authors.initials: A
authors.lastname: Alcalde-Aragonés
authors.forename: Andrea
authors.initials: A
authors.lastname: Olmos
authors.forename: María Elena
authors.initials: ME
authors.lastname: González-Núñez
authors.forename: Gregorio
authors.initials: G
authors.lastname: Asensio