Table 4.
Entrya | Time | Molarity | 1:3:4b | Yield of 3c |
---|---|---|---|---|
18 | 30 min | 0.027 M | 7:15:1 | n/a |
19 | 30 min | 0.091 M | 0:1:trace | 44 |
20 | 30 min | 0.18 | 0:9:1 | n/a |
9 mol % PdCl2(dppf)CH2Cl2, THF:H2O (10:1) at 0.051 M, 5 equiv of 2, 3 equiv Cs2CO3, 150 °C for 30 min
Determined by 1H NMR integration of the crude mixture.
Isolated yield.