Visible-Light-Induced Copper-Catalyzed Coupling Reaction of Aryl Halides with Phenols at Room Temperature
Abstract
This work describes a visible-light-induced Ullmann C-O coupling between aryl halides and phenols at room temperature without an external photocatalyst. Preliminary mechanistic studies suggest that the in situ-formed LCu(I)-phenoxide complex functions as both a photosensitizer and an active catalyst. The synthetic utility of this photoinduced Ullmann-type coupling was demonstrated by a gram-scale reaction with maintained high yield and successful late-stage functionalization of pharmaceutically relevant compounds in good yields.
Fields of Study & Subjects
Catalytic Cross-Coupling Reactions
Radical Photochemical Reactions
Sulfur-Based Synthesis Techniques
Publication details
- Journal / source
- Organic Letters
- Publisher
- American Chemical Society (ACS)
- Volume
- 28
- Issue
- 18
- Pages
- 5686–5692
- Publication date
- 24 April 2026
- Language
- EN