Photocatalysis of ethanol oxidation by tetrachloroferrate(III) supported on Dowex 2‐X8. (15th October 2014)

• Record Type: Journal Article
• Authors: Schembri, Laura; Hoggard, Patrick E.
• Is Part Of: Applied organometallic chemistry. Volume 28:Number 12(2014:Dec.)
• Page Start: 874
• Page End: 878
• Publication Date: 2014-10-15
• Subjects: Organometallic chemistry -- Periodicals; Organometallic compounds -- Periodicals; 547.05
• DOI: 10.1002/aoc.3229
• Languages: English
• ISSNs: 0268-2605

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <p>FeCl₄⁻ heterogenized on a Dowex 2‐X8 anion exchange resin catalyzes the photooxidation of ethanol to acetaldehyde under visible and near‐UV irradiation (&gt;345 nm). The rate of reaction is proportional to the oxygen partial pressure up to 1 atm. Oxidation is suggested to occur through the formation of 1‐hydroxyethylhydroperoxide, initiated by the photodissociation of a chlorine atom. The hydroperoxide re‐oxidizes the iron(II) species, both the <named-content content-type="reactionType" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink">oxidation and reduction</named-content> steps producing acetaldehyde. This mechanism is consistent with the increases in yield with ethanol concentration in ethanol–toluene mixtures towards an asymptotic limit. Copyright © 2014 John Wiley &amp; Sons, Ltd.</p> </abstract>