Fig. 2: Substrate scope^a.

The C-SuFEx linkage reaction of sulfonimidoyl fluorides and potassium trifluoroborate salts. ^aReaction conditions: 1a (0.6 mmol), 2a (0.4 mmol), TMSOTf (20 mol%), CH₃CN (2 mL), N₂, rt to 40 °C, 30 min; ^bTMSOTf (50 mol%), rt, air, 30 min; ^cTMSOTf (30 mol%).