Fig. 3: Substrate scope of heteroaromatics.
From: Direct C–H difluoromethylation of heterocycles via organic photoredox catalysis
Reaction conditions: 4 (0.1 mmol), CF2HSO2Na 2 (0.4 mmol), rose bengal (5 mol.%) in 1 mL DMSO under two 3 W green LEDs irradiation at room temperature. Isolated yields based on 4. bWith CF2HSO2Na 2 (0.4 mmol), rose bengal (2 mol%) in 1 mL DMSO.
