Journal
CHEMISTRY LETTERS
Volume 47, Issue 11, Pages 1343-1345Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.180635
Keywords
Quinone; Photochemical reduction; Proton-coupled electron transfer
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Photochemical reductions of imidazole-conjugated quinones in acetonitrile solutions containing [Ru(bpy)(3)](2+) (bpy: 2.2'-bipyridine) as a photosensitizer and triethanolamine as an electron donor selectively afforded the corresponding hydroquinones. These conversions were accelerated by the presence of an imidazolyl N-H proton, suggesting that the proton-coupled electron transfer retards the back-electron transfer.
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