Fig. 3. Initial experiments for photocatalytic deuterodehalogenation of aryl chlorides.

Reaction conditions: 1a (0.10 mmol), D₂O (0.10 mL), PC1−PC4 (0.0050 mmol), thiol or disulfide (0.030 mmol), additive (0.20 mmol), DMSO (0.50 mL), a 50 W blue LEDs lamp (λ_max = 400 nm), room temperature (~ 30 °C under irradiation), in air. ^aDegree of conversion determined by ¹H-NMR. ^bD-inc. determined by ¹H-NMR. ^cIn the dark. PC, photocatalyst; eq, equivalent; r.t., room temperature; conv., conversion; D-inc., deuterium incorporation; t, reaction time; quant., quantitative conversion; n.d., not determined; n.a., not applicable; DMSO, dimethyl sulfoxide.