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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
general
The benzaldehyde oxidation paradox explained by the interception of peroxy radical by benzyl alcohol
Nature Communications, Volume 5, Article 3332, Year 2014
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Description
Benzaldehyde readily undergoes autoxidation to form benzoic acid on exposure to air at room temperature. Yet it can be formed in high yield from, for example, benzyl alcohol by oxidation using a variety of procedures and catalysts. Here we report the evidence to resolve this apparent paradox. It is confirmed that benzyl alcohol (and a number of other alcohols), even at low concentrations in benzaldehyde, inhibits the autoxidation. Furthermore we report on the structural features required for inhibition. Electron paramagnetic resonance spin trapping experiments demonstrate that benzyl alcohol intercepts, by hydrogen atom transfer, the benzoylperoxy radicals that play a key role in benzaldehyde autoxidation. A similar inhibition effect has also been observed for the aliphatic octanal/1-octanol system. © 2014 Macmillan Publishers Limited. All rights reserved.
Authors & Co-Authors
Sankar, Meenakshisundaram
United Kingdom, Cardiff
Cardiff University
Nowicka, Ewa
United Kingdom, Cardiff
Cardiff University
Carter, Emma
United Kingdom, Cardiff
Cardiff University
Murphy, Damien Martin
United Kingdom, Cardiff
Cardiff University
Knight, David W.
United Kingdom, Cardiff
Cardiff University
Bethell, Donald
United Kingdom, Liverpool
University of Liverpool
Hutchings, Graham John
United Kingdom, Cardiff
Cardiff University
Statistics
Citations: 159
Authors: 7
Affiliations: 2
Identifiers
Doi:
10.1038/ncomms4332
ISSN:
20411723
Research Areas
Environmental
Substance Abuse