Palladium‐Aminopyridine Catalyzed C−H Oxygenation: Probing the Nature of Metal Based Oxidant
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DOI: 10.1002/cctc.202101345
Abstract: A mechanistic study of direct selective oxidation of benzylic C(sp3)−H groups with peracetic acid, catalyzed by palladium complexes with tripodal amino‐tris(pyriylmethyl) ligands, is presented. The oxidation of arylalkanes having secondary and tertiary benzylic C−H groups,… read more here.
Keywords: palladium aminopyridine; probing nature; oxygenation probing; aminopyridine catalyzed ... See more keywords
Copper-Catalyzed Oxygenation Approach to Oxazoles from Amines, Alkynes, and Molecular Oxygen.
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DOI: 10.1021/acs.orglett.8b00992
Abstract: A novel and efficient oxygenation approach to trisubstituted oxazoles via a copper-catalyzed aerobic oxidative dehydrogenative annulation of amines, alkynes, and O2 has been developed. This transformation combines dioxygen activation and oxidative C-H bond functionalization and… read more here.
Keywords: catalyzed oxygenation; oxygenation approach; oxygenation; copper catalyzed ... See more keywords
Electrochemical Cobalt-Catalyzed C-H Oxygenation at Room Temperature.
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DOI: 10.1021/jacs.7b11025
Abstract: Electrochemical cobalt-catalyzed C-H functionalizations were achieved in terms of C-H oxygenation under mild conditions at 23 °C. The robust electrochemical C-H functionalization was characterized by ample substrate scope, whereas mechanistic studies provided support for a… read more here.
Keywords: electrochemical cobalt; oxygenation room; catalyzed oxygenation; cobalt catalyzed ... See more keywords
Ruthenium-catalyzed C-H oxygenation of quinones by weak O-coordination for potent trypanocidal agents.
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DOI: 10.1039/c8cc07572g
Abstract: Ruthenium-catalysis enabled the C-5 selective C-H oxygenation of naphthoquinones, and also sets the stage for the site-selective introduction of a hydroxyl group into anthraquinones. A-ring modified naphthoquinoidal compounds represent an important class of bioactive quinones… read more here.
Keywords: catalyzed oxygenation; oxygenation; weak coordination; oxygenation quinones ... See more keywords