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One-Step Selective Hydroxylation of Benzene to Phenol

Title
One-Step Selective Hydroxylation of Benzene to Phenol
Authors
Fukuzumi, ShunichiOhkubo, Kei
Ewha Authors
Shunichi FukuzumiKei Okubo
SCOPUS Author ID
Shunichi Fukuzumiscopusscopus; Kei Okuboscopus
Issue Date
2015
Journal Title
ASIAN JOURNAL OF ORGANIC CHEMISTRY
ISSN
2193-5807JCR Link

2193-5815JCR Link
Citation
ASIAN JOURNAL OF ORGANIC CHEMISTRY vol. 4, no. 9, pp. 836 - 845
Keywords
benzenehydrogen peroxidehydroxylationoxidationphenol
Publisher
WILEY-V C H VERLAG GMBH
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Review
Abstract
Recent developments in the one-step thermal and photochemical catalytic hydroxylation of benzene to phenol using various oxidants are described, focusing on the catalytic mechanisms. Hydroxylation of benzene with hydrogen peroxide is catalyzed by homogeneous metal complexes and heterogeneous metal oxides to produce phenol when high-valent metal-oxo complexes are reactive species The selective hydroxylation of benzene to phenol is achieved by using mesoporous silica-alumina as the catalyst support, which prohibits further oxidation of phenol due to the strongly acidic sites. Photocatalytic oxidation of benzene with dioxygen and water is made possible by using organic photocatalysts via photoinduced electron transfer from benzene to the excited states of the photocatalysts, followed by the hydroxylation of the benzene radical cation with water to yield phenol selectively. The further oxidation of phenol is prohibited because of the fast back electron transfer from the one-electron reduced species of the photocatalyst to the phenol radical cation, whereas back electron transfer from the one-electron reduced species to the benzene radical cation is slowed down because of the large driving force of the back electron transfer, which is in the Marcus inverted region.
DOI
10.1002/ajoc.201500187
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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