Fig. 7
From: External oxidant-free electrooxidative [3 + 2] annulation between phenol and indole derivatives

Radical trapping experiment. Radical trapping experiment by P(OEt)3
From: External oxidant-free electrooxidative [3 + 2] annulation between phenol and indole derivatives

Radical trapping experiment. Radical trapping experiment by P(OEt)3