Ultrasound and ionic liquid: an efficient combination to tune the mechanism of alkenes epoxidation

Gregory Chatel 1, 2 Catherine Goux-Henry 2 N. Kardos 1 Joël Suptil 1 Bruno Andrioletti 2, * M. Draye 1, *
* Corresponding author
2 CASYEN - Catalyse Synthèse et Environnement
ICBMS - Institut de Chimie et Biochimie Moléculaires et Supramoléculaires
Abstract : In this proof of concept study, the advantageous properties of both H(2)O(2)/NaHCO(3)/imidazole/Mn(TPP)OAc oxidation system and MOPyrroNTf(2) ionic liquid have been combined under ultrasonic irradiation to give an exceptionally favorable environment for Mn(TPP)OAc catalyzed olefin oxidations. The results reveal the crucial role played by the ultrasonic irradiations that influence drastically the oxidation process. In MOPyrroNTf(2) and under ultrasonic irradiation, the mechanism probably involves an oxo-manganyl intermediate at the expense of the classical bicarbonate-activated peroxide route.
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https://hal.archives-ouvertes.fr/hal-00695888
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Submitted on : Thursday, May 10, 2012 - 11:02:45 AM
Last modification on : Wednesday, May 22, 2019 - 4:24:07 PM

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Gregory Chatel, Catherine Goux-Henry, N. Kardos, Joël Suptil, Bruno Andrioletti, et al.. Ultrasound and ionic liquid: an efficient combination to tune the mechanism of alkenes epoxidation. Ultrasonics Sonochemistry, Elsevier, 2012, 19 (3), pp.390-394. ⟨10.1016/j.ultsonch.2011.10.007⟩. ⟨hal-00695888⟩

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