Table 2. Substrate scope of pinacol arylborates ^a .

^aAll reactions were performed on a 0.2 mmol scale. Isolated yields were reported.

^b 2a was added in two portions.

^c2.0 equiv. of 2a and 4.0 equiv. of K₂CO₃ were used.

^dThe reaction was performed at 80 °C.