Luyao Liu, W. Fan, Wei Chen
Jun 2, 2021
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Journal
Catalysis Science & Technology
Abstract
Highly efficient oxidation of methane to methyl trifluoroacetate mediated by CuCl/KF/K2S2O8 in trifluoroacetic acid (TFA) and trifluoroacetic anhydride (TFAA) is described. The additive effect has been systematically evaluated and potassium fluoride (KF) was identified as the most effective promoter among the salts screened. KF is conjectured to exhibit the salt effect to promote the [SO4˙]− radical to escape the solvent cage based on control experiments. Cyclohexane and adamantane could also be efficiently oxidized into benzene or corresponding trifluoroacetates.