View : 16 Download: 3

Selective photocatalytic reactions with organic photocatalysts

Title
Selective photocatalytic reactions with organic photocatalysts
Authors
Fukuzumi S.Ohkubo K.
Ewha Authors
Shunichi Fukuzumi
SCOPUS Author ID
Shunichi Fukuzumiscopus
Issue Date
2013
Journal Title
Chemical Science
ISSN
2041-6520JCR Link
Citation
vol. 4, no. 2, pp. 561 - 574
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Selective photocatalytic oxygenation of various substrates has been achieved using organic photocatalysts via photoinduced electron-transfer reactions of photocatalysts with substrates and dioxygen under visible light irradiation. Photoinduced electron transfer from benzene to the singlet-excited state of the 3-cyano-1-methylquinolinium ion has enabled the oxidation of benzene by dioxygen with water to yield phenol selectively. Alkoxybenzenes were obtained when water was replaced by alcohols under otherwise the same experimental conditions. Photocatalytic selective oxygenation reactions of aromatic compounds have also been achieved using an electron donor-acceptor linked dyad, 9-mesityl-10-methylacridinium ion (Acr+-Mes) acting as a photocatalyst and dioxygen as an oxidant under visible light irradiation. The oxygenation reaction is initiated by intramolecular photoinduced electron transfer from the mesitylene moiety to the singlet-excited state of the acridinium moiety of Acr+-Mes to afford an extremely long-lived electron-transfer state. The electron-transfer state can oxidize and reduce substrates and dioxygen, respectively, leading to selective oxygenation and halogenation of substrates. C-C bond formation of substrates has also been made possible by using Acr+-Mes as a photocatalyst. © The Royal Society of Chemistry 2013.
DOI
10.1039/c2sc21449k
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
Files in This Item:
001.pdf(653.58 kB)Download
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE