4.8 Article

The Uranyl Cation as a Visible-Light Photocatalyst for C(sp3)-H Fluorination

Journal

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 31, Pages 8923-8927

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201603149

Keywords

C-H activation; fluorination; hydrogen atom transfer; photocatalysis; uranium

Funding

  1. NIGMS [R01 GM065483]
  2. NSF-GRFP [DGE 1148900]
  3. NSF-CCI Center for Selective C-H Functionalization [CHE-1205646]
  4. Princeton University
  5. Division Of Chemistry
  6. Direct For Mathematical & Physical Scien [1205646] Funding Source: National Science Foundation

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The fluorination of unactivated C(sp(3)) -H bonds remains a desirable and challenging transformation for pharmaceutical, agricultural, and materials scientists. Previous methods for this transformation have used bench-stable fluorine atom sources; however, many still rely on the use of UV-active photocatalysts for the requisite high-energy hydrogen atom abstraction event. Uranyl nitrate hexahydrate is described as a convenient, hydrogen atom abstraction catalyst that can mediate fluorinations of certain alkanes upon activation with visible light.

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