Table 1.

Substrate scope^a

^aIsolated yields on 0.2 mmol scale; dr was determined by ¹H NMR analysis of the purified product and was within a single percentage point relative to the crude dr.

^bX-ray structure shown with anisotropic displacement ellipsoids at the 50% probability level. The picryl sulfonate counterion and hydrogen atoms are omitted for clarity.

^c87:13 dr prior to isolation determined by crude ¹H NMR analysis.

^d16 h reaction time.

^e2 mol % Ir(ppy)₃, 72 h reaction time.

^f[Ir(dtbbpy)(ppy)₂]PF₆ instead of Ir(ppy)₃.