Photocatalytic C-H Amination of Aromatics Overcoming Redox Potential Limitations
We report the photocatalytic C-H amination of aromatics overcoming redox potential limitations. Radical cations of aromatic compounds are generated photocatalytically using Ru(phen)3(PF6)2, which has a reduction potential at a high oxidation state (Ered(RuIII/RuII) = +1.37 V vs SCE) lower than the oxidation potentials of aromatic substrates (Eox = +1.65 to +2.27 V vs SCE). The radical cations are trapped with pyridine to give N-arylpyridinium ions, which were converted to aromatic amines.
Ikarashi, Gun,Kano, Naokazu,Morofuji, Tatsuya
supporting information
p. 2822 - 2827
(2020/04/16)
Condensations of N-arylhydroxylamines for the preparation of 5,5′-di-tert-butyl-2,2′-dihydroxydiphenylamine
Acid-promoted condensation of 4-tert-butyl-2-hydroxylaminoanisole with p-tert-butylphenol resulted in the formation of 5,5′-di-tert-butyl-2,2′-dihydroxydiphenylamine upon demethylation with BBr3. Protection of the acidic phenol unit was require
Spence, John D.,Raymond, Ashley E.,Norton, Dianne E.
p. 849 - 851
(2007/10/03)
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