Fig. 6: Scope of the electron-rich benzyl alcohols oxidation.

Reactions were conducted with 4 (0.2 mmol), 4-nitrophthalonitrile cat1 (0.02 mmol) in DMSO (2 mL) under 2.0 mL air atmosphere at room temperature with 390 nm LEDs irradiation for 48 h. All yields were calculated after isolation.