Ethyltrioxorhenium – Catalytic application and decomposition pathways

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Hofmann, Benjamin J. ORCID: https://orcid.org/0000-0001-6408-3472, Huber, Stefan, Reich, Robert M., Drees, Markus and Kühn, Fritz E. (2019) Ethyltrioxorhenium – Catalytic application and decomposition pathways. Journal of Organometallic Chemistry, 885. pp. 32-38. ISSN 0022-328X

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Abstract

Despite its sensitivity, ethyltrioxorhenium (ETO) is applicable as catalyst in the epoxidation of olefins using either tert-butylhydroperoxide (TBHP) or hydrogen peroxide as oxidants. Conversions of approximately 80% with only epoxide being formed and a turnover frequency (TOF) of up to 1200 h−1 can be achieved with TBHP in 1,1,1,3,3,3-hexafluroroisopropanol (HFI). As proven for its more stable congener MTO, the active species is highly likely an alkyl peroxo species, as shown by 17O-NMR experiments. Experimental and theoretical studies on the decomposition mechanism of ETO in diluted polar solvents reveal that the degradation pathway proceeds equally via β-hydrogen elimination and radical decomposition.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Chemistry
Related URLs:	http://dx.doi.org/10.1016/j.jorganchem.2...
Depositing User:	LivePure Connector
Date Deposited:	17 Jul 2021 00:12
Last Modified:	23 Oct 2022 02:42
URI:	https://ueaeprints.uea.ac.uk/id/eprint/80630
DOI:	10.1016/j.jorganchem.2019.02.004

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