Insights into Ruthenium(II/IV)-Catalyzed Distal C-H Oxygenation by Weak Coordination.
2020
C-H hydroxylation of aryl acetamides and alkyl phenylacetyl esters was accomplished via challenging distal weak O -coordination by versatile ruthenium(II/IV) catalysis. The ruthenium(II)-catalyzed C-H oxygenation of aryl acetamides proceeded through C-H activation, ruthenium(II/IV) oxidation and reductive elimination, thus providing step-economical access to valuable phenols. The p -cymene-ruthenium(II/IV) manifold was established by detailed experimental and DFT-computational studies.
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