High frequency ultrasound as a tool for elucidating mechanistic elements of cis-cyclooctene epoxidation with aqueous hydrogen peroxide - Université Savoie Mont Blanc Access content directly
Journal Articles Ultrasonics Sonochemistry Year : 2019

High frequency ultrasound as a tool for elucidating mechanistic elements of cis-cyclooctene epoxidation with aqueous hydrogen peroxide

Abstract

The use of high frequency ultrasound (800 kHz) highlights the non-radical character of the cis-cyclooctene epoxidation mediated by H2O2 and H2WO4. Combination of moderate mixing brought by the ultrasonic irradiation with precise thermoregulation of the double jacketed sonoreactor demonstrates the potential of this technique for studying and optimizing all the reaction parameters. The results not only reveal that the optimized ultrasonic conditions lead to excellent epoxidation outcomes with 96% yield and 98% selectivity but also to higher selectivities toward the epoxidation product compared with silent conditions.
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Dates and versions

hal-01979018 , version 1 (02-04-2021)

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Tony Cousin, Gregory Chatel, Nathalie Kardos, Bruno Andrioletti, Micheline Draye. High frequency ultrasound as a tool for elucidating mechanistic elements of cis-cyclooctene epoxidation with aqueous hydrogen peroxide. Ultrasonics Sonochemistry, 2019, 53 (120-125), pp.120 - 125. ⟨10.1016/j.ultsonch.2018.12.038⟩. ⟨hal-01979018⟩
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