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  Organic semiconductor photocatalyst can bifunctionalize arenes and heteroarenes

Ghosh, I., Khamrai, J., Savateev, A., Shlapakov, N., Antonietti, M., & König, B. (2019). Organic semiconductor photocatalyst can bifunctionalize arenes and heteroarenes. Science, 365(6451), 360-366. doi:10.1126/science.aaw3254.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-6283-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-6284-8
Genre: Journal Article

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 Creators:
Ghosh, Indrajit1, Author              
Khamrai, Jagadish, Author
Savateev, Aleksandr2, Author              
Shlapakov, Nikita, Author
Antonietti, Markus1, Author              
König, Burkhard, Author
Affiliations:
1Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863321              
2Aleksandr Savateev, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2421702              

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 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.

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 Dates: 2019-07-262019
 Publication Status: Published in print
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 Identifiers: DOI: 10.1126/science.aaw3254
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Title: Science
  Other : Science
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Association for the Advancement of Science
Pages: - Volume / Issue: 365 (6451) Sequence Number: - Start / End Page: 360 - 366 Identifier: ISSN: 0036-8075