Table 3.

Reaction scope with respect to chalcones.^a

^aIsolated yields are the averaged results of two reproducible experiments. Diastereomer ratios were determined by ¹H NMR analysis of the unpurified reaction mixtures. Enantiomeric excesses for the major diastereomer were determined by chiral SFC. See Supporting Information for details.

^bReaction was irradiated with monochromatic high-intensity blue LED.

^cReaction was irradiated for 40 h.

^dYields determined by ¹H NMR analysis using phenanthrene as a calibrated internal standard.