Illumination of 1,4-benzoquinone in acetaldehyde with visible light yields acetylquinol which is shown by the use of 1,1-diphenylethylene as a scavenger to be formed via attack of acetyl radicals on the quinone. Supporting evidence is provided by reactions initiated in the dark by di-t-butyl diperoxalate.
J. M. Bruce and E. Cutts, J. Chem. Soc. C, 1966, 449 DOI: 10.1039/J39660000449
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