Table 3. Scope of silyl enol ethers^a,b.

^aReactions were conducted on a 0.2 mmol scale using 1.5 equiv. 1a, 1.0 equiv. (2a–2n), and fac-Ir(ppy)₃ (2 mol%) at 0.1 M.

^bIsolated yields after chromatographic purification.

^c fac-Ir(ppy)₃ (10% mmol).