Figure 3.

Scope of photoredox benzyl and allyl boronic esters arylation with cyanoarenes in flow (for benzyl: 0.25 mmol scale, 0.25 m in acetone). Isolated yields, a slug containing all the premixed reaction mixture was eluted through the reactor at 100 μL min⁻¹, collected and concentrated before being purified on flash column chromatography. [a] Allylation experiments were performed on a 1.0 mmol scale (0.5 m in acetone), using 2.5 equivalents of the allylboronic acid pinacol ester and 0.5 mol % of cat(1) at 200 μL min⁻¹ (τ=50 min).