Fig. 6. Scope of the photocatalytic C(sp³)–H alkylation executed with in-line TBADT recovery.

^a Reaction conditions for single run without catalyst recycling: alkene (0.1 M), H-donor (10 equiv), TBADT (1 mol%) in CH₃CN (5 mL). Irradiation source: λ = 365 nm (150 W), residence time: 5 min (see the Supplementary Information for additional details). Isolated yields are given in parentheses. ^b The yield was determined by ¹H-NMR using 1,2,4,5-tetramethylbenzene as external standard. ^c 1.2 mol% TBADT.