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4-Cyano-N-trifluoromethoxypyridinium triflimide

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  • IUPAC Name: 4-Cyano-N-trifluoromethoxypyridinium bis(trifluoromethanesulfonyl)imide
  • Synonyms: Trifluoromethoxylation pyridinium reagent
  • CAS: 2242839-02-5
  • Smiles: N#CC1=CC=[N+](OC(F)(F)F)C=C1.O=S([N-]S(=O)(C(F)(F)F)=O)(C(F)(F)F)=O
  • Chemical formula: C9H4F9O5N3S2
  • Molecular weight: 469.26
  • Purity: 95%+

4-Cyano-N-trifluoromethoxypyridinium triflimide acts as a formally electrophilic trifluoromethoxylation reagents operating via trifluoromethoxy radical as the key intermediate, enabling for example direct C-H trifluoromethoxylation of aromatics.

Read more in publication Radical Trifluoromethoxylation of Arenes Triggered by a Visible‐Light‐Mediated N−O Bond Redox Fragmentation.