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Synthesis of N‐sulfonyl amidines.

Synthesis of N‐sulfonyl amidines.

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A) Previous methodologies for synthesis of N‐sulfonyl amidines. B)...
(A) Efficiency of copper catalysts. (B) Efficiency of nitroxyl radicals.
Synthesis of N‐sulfonyl amidines.
Evaluation of green chemistry parameters.
+5 Various amine sources.
Alternative and Sustainable Route to Explore a New Class of Amidines by Photochemical Synergistic Effect of Copper/Nitroxyl Radical Catalysis via Halogen‐Atom Transfer
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Full-text available
  • Feb 2025
Amidines are a vital class of bioactive compounds and often necessitate multiple components for their synthesis. Therefore, exploring efficient and sustainable methodologies for their synthesis is indispensable. Herein, we disclose an alternative and greener method for synthesizing an unexplored new class of amidines through the photochemical syner...
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Ligand‐Enabled Photoinduced Ruthenium Catalysis for Ortho‐C─O Bond Formation at Room Temperature
Article
Full-text available
  • Apr 2025
  • CHEM-EUR J
Photoinduced ruthenium‐catalyzed ortho‐benzoxylation through organophosphine ligand is unveiled. The in situ generation of the organophosphine‐ruthenium complex facilitates ligand‐to‐metal charge transfer (LMCT) under visible light, promoting the site‐selective ortho‐benzoxylation at room temperature. The broad scope of aryl, aliphatic, and heterocyclic carboxylic acids are key attractions of this methodology. EPR and UV‐Vis analysis support a LMCT process between a photoexcited organophosphine and Ru‐complex under blue‐light irradiation. Comprehensive mechanistic investigation highlights the role of light, ligands, oxidants, the LMCT process, and the unique reactivity of the directing group.
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