sciencemag.org 17 FEBRUARY 2017 • VOL 355 ISSUE 6326 729
Fig. 3. Reaction scope. Reactions were run at 0.5-mmol scale unless otherwise noted. Yields are for isolated material after purification unless otherwise
noted and are the average of two experiments. All chiral products in this study were formed as racemates. Irradiation was from two 34-W Kessel LED
lamps; rt, room temperature. *Reaction run at 45°C. †5.0 equivalents of olefin. ‡3.0 equivalents of olefin. §1.5 equivalents of olefin. ||Substrate is a tri-methylsilyl enol ether. ¶Isolated yield after acylative workup with Boc2O to facilitate purification. #Reactions run at 0.2-mmol scale. **2-methylnon-1-ene as
the olefin partner. ††NMR yield.