Cation Radical-Mediated Semi-Pinacol and n+2 Ring Expansions via Organic Photoredox Catalysis

Key Points

• To explore cation radical-mediated rearrangements and n+2 ring expansions using photoredox catalysis.
• Investigated semi-pinacol rearrangement through photoredox catalysis
• Examined n+2 ring expansions with distinct mechanisms
• Developed protocols for dearomatized and rearomatized products.
• Confirmed the viability of cation radical-mediated reactions
• Demonstrated successful rearrangement and ring expansion pathways