Ghosh, Indrajit and Khamrai, Jagadish and Savateev, Aleksandr and Shlapakov, Nikita and Antonietti, Markus and Koenig, Burkhard (2019) Organic semiconductor photocatalyst can bifunctionalize arenes and heteroarenes. SCIENCE, 365 (6451). 360-+. ISSN 0036-8075, 1095-9203
Full text not available from this repository. (Request a copy)Abstract
Photoexcited electron-hole pairs on a semiconductor surface can engage in redox reactions with two different substrates. Similar to conventional electrosynthesis, the primary redox intermediates afford only separate oxidized and reduced products or, more rarely, combine to one addition product. Here, we report that a stable organic semiconductor material, mesoporous graphitic carbon nitride (mpg-CN), can act as a visible-light photoredox catalyst to orchestrate oxidative and reductive interfacial electron transfers to two different substrates in a two-or three-component system for direct twofold carbon-hydrogen functionalization of arenes and heteroarenes. The mpg-CN catalyst tolerates reactive radicals and strong nucleophiles, is straightforwardly recoverable by simple centrifugation of reaction mixtures, and is reusable for at least four catalytic transformations with conserved activity.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GRAPHITIC CARBON NITRIDE; C-H FUNCTIONALIZATION; CATALYZED ELECTROPHILIC AMINATION; PHOTOREDOX CATALYSIS; ARYL HALIDES; TRIFLUOROMETHYLATION; CYANATION; HYDROGEN; REDUCTION; LIGAND; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 07 Apr 2020 07:13 |
| Last Modified: | 07 Apr 2020 07:13 |
| URI: | https://pred.uni-regensburg.de/id/eprint/26601 |
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