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- W1968634817 abstract "Oxidation of phenol, anisole and toluene with permonophosphoric acid in acetonitrile or water gives the corresponding ortho and para hydroxylated aromatics (HO-C6H4-X, X = OH, OMe, Me). The observed ortho :para ratio in a solvent acetonitrile are as follows: 5·0 with phenol, 3·5 with anisole and 2·0 with toluene. The oxidation rates for phenol and anisole in acetonitrile are expressed as: v = k″[ArH][H3PO5]2ho, where ho is the Hammett's acidity function and ArH is phenol or anisole. A mechanism involving a rate-determining attack of protonated dimeric perphosphoric acid 4 on aromatic carbon is presented and discussed." @default.
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- W1968634817 date "1974-01-01" @default.
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- W1968634817 title "Kinetics of the aromatic hydroxylation with permonophosphoric acid" @default.
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- W1968634817 doi "https://doi.org/10.1016/s0040-4020(01)97547-7" @default.
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