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HERO ID
4238299
Reference Type
Journal Article
Title
Light-Driven C-H Oxygenation of Methane into Methanol and Formic Acid by Molecular Oxygen Using a Perfluorinated Solvent
Author(s)
Ohkubo, K; Hirose, K
Year
2018
Is Peer Reviewed?
Yes
Journal
Angewandte Chemie (International Edition)
ISSN:
1433-7851
EISSN:
1521-3773
Volume
57
Issue
8
Page Numbers
2126-2129
Language
English
PMID
29227025
DOI
10.1002/anie.201710945
Web of Science Id
WOS:000424879400016
Abstract
The chlorine dioxide radical (ClO2.) was found to act as an efficient oxidizing agent in the aerobic oxygenation of methane to methanol and formic acid under photoirradiation. Photochemical oxygenation of methane occurred in a two-phase system comprising perfluorohexane and water under ambient conditions (298 K, 1 atm). The yields of methanol and formic acid were 14 and 85 %, respectively, with a methane conversion of 99 % without formation of the further oxygenated products such as CO2and CO. Ethane was also photochemically converted into ethanol (19 %) and acetic acid (80 %). The methane oxygenation is initiated by the photochemical Cl-O bond cleavage of ClO2.to generate Cl.and O2. The produced Cl.reacts with CH4to form a methyl radical (CH3.). Finally, the oxygenated products such as methanol and formic acid were given by the radical chain reaction. A fluorous solvent plays an important role of inhibiting the deactivation of reactive radical species such as Cl.and CH3..
Keywords
C−H activation; chlorine dioxide; oxygenation; perfluorinated solvents; photochemistry
Tags
PFAS
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Additional PFAS (formerly XAgency)
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PFNA
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