Figure 2.

Exploring the substrate scope. Reactions were performed on a 0.3 mmol scale with 5 mol % of thioxanthone in 9 mL of acetonitrile and irradiated for 1 h with a 402 nm LED. The ratio of isomers in the photostationary state was determined by ¹H NMR spectroscopy. Yields are for the isolated Z isomer unless otherwise stated. The E‐designation of E ‐10 and E ‐22 reflects the higher priority of F than C.