Iron catalyzed double bond isomerization: evidence for an Fe I /Fe III catalytic cycle

Woof, Callum R., Durand, Derek J., Fey, Natalie, Richards, Emma ORCID: https://orcid.org/0000-0001-6691-2377 and Webster, Ruth L. 2021. Iron catalyzed double bond isomerization: evidence for an Fe I /Fe III catalytic cycle. Chemistry - A European Journal 27 (19) , pp. 5972-5977. 10.1002/chem.202004980

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Abstract

Iron‐catalyzed isomerization of alkenes is reported using an iron(II) β‐diketiminate pre‐catalyst. The reaction proceeds with a catalytic amount of a hydride source, such as pinacol borane (HBpin) or ammonia borane (H3N⋅BH3). Reactivity with both allyl arenes and aliphatic alkenes has been studied. The catalytic mechanism was investigated by a variety of means, including deuteration studies, Density Functional Theory (DFT) and Electron Paramagnetic Resonance (EPR) spectroscopy. The data obtained support a pre‐catalyst activation step that gives access to an η2‐coordinated alkene FeI complex, followed by oxidative addition of the alkene to give an FeIII intermediate, which then undergoes reductive elimination to allow release of the isomerization product.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Additional Information:	This is an open access article under the terms of the Creative Commons Attribution License
Publisher:	Wiley
ISSN:	0947-6539
Funders:	EPSRC
Date of First Compliant Deposit:	19 March 2021
Date of Acceptance:	25 January 2021
Last Modified:	05 May 2023 23:04
URI:	https://orca.cardiff.ac.uk/id/eprint/139915

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