Table 2. Substrate scope of the photolytic borylation ^a .

^aBatch conditions: 1a (0.2 mmol, c = 0.1 M), 2 (0.4 mmol, 2.0 eq.), TMDAM (0.5 eq.), RT, 4 h; flow conditions: 1a (c = 0.1 M), 2 (1.5 eq.), TMDAM (0.5 eq.), –5 °C, residence time 15–30 min.

^bDetermined by ¹H NMR with 1,3,5-trimethoxybenzene as an internal standard; TMDAM: N,N,N′,N′-tetramethyldiaminomethane.