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Photocatalytic hydrogenation of acetophenone derivatives and diaryl ketones on polycrystalline titanium dioxide

In the absence of molecular oxygen, various aromatic ketones such as acetophenone derivatives and diaryl ketones were photocatalytically hydrogenated on polycrystalline titanium dioxide (Degussa P25) under UV light irradiation (> 340 nm). The desired secondary alcohols were obtained with excellen...

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Bibliographic Details
Published in:Catalysis communications 2010-07, Vol.11 (13), p.1049-1053
Main Authors: Kohtani, Shigeru, Yoshioka, Eito, Saito, Kenji, Kudo, Akihiko, Miyabe, Hideto
Format: Article
Language:English
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Summary:In the absence of molecular oxygen, various aromatic ketones such as acetophenone derivatives and diaryl ketones were photocatalytically hydrogenated on polycrystalline titanium dioxide (Degussa P25) under UV light irradiation (> 340 nm). The desired secondary alcohols were obtained with excellent chemical efficiency (almost 100% yields for 10 examples) by choosing ethanol as a sacrificial hole scavenger, which was oxidized into acetaldehyde.
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2010.04.022