High frequency ultrasound as a tool for elucidating mechanistic elements of cis-cyclooctene epoxidation with aqueous hydrogen peroxide
| Autor: | Micheline Draye, Gregory Chatel, Bruno Andrioletti, Nathalie Kardos, Tony Cousin |
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| Přispěvatelé: | Laboratoire de Chimie Moléculaire et Environnement (LCME), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Catalyse Synthèse et Environnement (CASYEN), Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut de Chimie du CNRS (INC)-École Supérieure Chimie Physique Électronique de Lyon-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut de Chimie du CNRS (INC)-École Supérieure Chimie Physique Électronique de Lyon-Centre National de la Recherche Scientifique (CNRS), MONUECO |
| Rok vydání: | 2018 |
| Předmět: |
Tungsten-based catalyst
Acoustics and Ultrasonics Epoxidation 02 engineering and technology Cis-cyclooctene 010402 general chemistry 01 natural sciences Inorganic Chemistry chemistry.chemical_compound Cyclooctene Ultrasound [CHIM]Chemical Sciences Chemical Engineering (miscellaneous) Environmental Chemistry Radiology Nuclear Medicine and imaging Hydrogen peroxide Aqueous solution [CHIM.ORGA]Chemical Sciences/Organic chemistry Chemistry business.industry Organic Chemistry [CHIM.CATA]Chemical Sciences/Catalysis 021001 nanoscience & nanotechnology Combinatorial chemistry 0104 chemical sciences Yield (chemistry) Ultrasonic sensor 0210 nano-technology business Selectivity High frequency ultrasound |
| Zdroj: | Ultrasonics Sonochemistry Ultrasonics Sonochemistry, Elsevier, 2019, 53 (120-125), pp.120-125. ⟨10.1016/j.ultsonch.2018.12.038⟩ |
| ISSN: | 1873-2828 1350-4177 |
| DOI: | 10.1016/j.ultsonch.2018.12.038⟩ |
| Popis: | International audience; 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. |
| Databáze: | OpenAIRE |
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