Fig. 2: Substrate scope of the radical alkenylsulfonyl fluoride reaction.
From: A practical fluorosulfonylating platform via photocatalytic imidazolium-based SO2F radical reagent
a.Condition A: all reactions were carried out with olefins 1, IMSF salt 2b (0.20 mmol, 2 equiv), 4CzIPN (2 mol%), KH2PO4 (0.25 mmol, 2.5 equiv) in DME (1.0 mL) under Ar and 60 W blue LEDs. b.Condition B: all reactions were carried out with olefins 1, IMSF salt 2b (0.20 mmol, 2 equiv), PC 1 (2 mol%), KH2PO4 (0.25 mmol, 2.5 equiv) in EA:DME = 4:1 (1.0 mL) under Ar and 60 W blue LEDs, overnight, then 1.5 mL of acetonitrile containing Ir{[dF(CF3)ppy]2(dtbbpy)}PF6 (2 mol%) was added to react about 12 h. c.The E/Z ratio was determined by 19F NMR. d.The E/Z ratio was determined by 1H NMR. e.Isolated yield.
