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자연과학대학
화학·나노과학전공
Journal papers
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Effects of Lewis Acids on Photoredox Catalysis
Title
Effects of Lewis Acids on Photoredox Catalysis
Authors
Fukuzumi S.
;
Jung J.
;
Lee Y.-M.
;
Nam W.
Ewha Authors
남원우
;
이용민
;
Shunichi Fukuzumi
;
정지은
SCOPUS Author ID
남원우
; Shunichi Fukuzumi
; 정지은
Issue Date
2017
Journal Title
Asian Journal of Organic Chemistry
ISSN
2193-5807
Citation
Asian Journal of Organic Chemistry vol. 6, no. 4, pp. 397 - 409
Keywords
electron transfer
;
enantioselectivity
;
Lewis acids
;
oxidation
;
photochemistry
Publisher
Wiley-VCH Verlag
Indexed
SCIE; SCOPUS
Document Type
Review
Abstract
The reactivity of organic photoredox catalysts in oxidation reactions is enhanced by the addition of Lewis acids, which bind to the catalyst to increase its oxidizing ability. Redox-inactive metal ions, such as Sc3+, also act as Lewis acids and can bind to flavins to increase their one-electron reduction potentials and photocatalytic stability. The Sc3+ ion can bind to acridine and pyrene to enhance their photoredox catalytic activity in the oxidation of substrates by dioxygen. The binding of Lewis acids to radical anions enhances their overall photocatalytic activity by prohibiting a back electron transfer from the radical anions of substrates to the oxidized photocatalysts. The photocatalytic asymmetric oxidation of terminal olefins by using water as the oxygen source with a mononuclear nonheme chiral manganese complex has been made possible by the addition of acetic acid, which is essential to afford the products with high enantioselectivity. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
DOI
10.1002/ajoc.201600576
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