o-Quinone methide with overcrowded olefin component as a dehydridation catalyst under aerobic photoirradiation conditions


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Title:	o-Quinone methide with overcrowded olefin component as a dehydridation catalyst under aerobic photoirradiation conditions
Authors:	Uraguchi, Daisuke Browse this author →KAKEN DB
	Kato, Kohsuke Browse this author
	Ooi, Takashi Browse this author →KAKEN DB
Issue Date:	28-Feb-2021
Publisher:	Royal Society of Chemistry
Journal Title:	Chemical science
Volume:	12
Issue:	8
Start Page:	2778
End Page:	2783
Publisher DOI:	10.1039/d0sc06240e
Abstract:	An o-quinone methide (o-QM) featuring an overcrowded olefinic framework is introduced, which exhibits dehydridation activity owing to its enhanced zwitterionic character, particularly through photoexcitation. The characteristics of this o-QM enable the operation of dehydridative catalysis in the oxidation of benzylic secondary alcohols under aerobic photoirradiation conditions. An experimental analysis and density functional theory calculations provide mechanistic insights; the ground-state zwitterionic intermediate abstracts a hydride and proton simultaneously, and the active oxygen species facilitate catalyst regeneration.
Rights:	http://creativecommons.org/licenses/by-nc/3.0/
Type:	article
URI:	http://hdl.handle.net/2115/81201
Appears in Collections:	触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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