Table 16.
entry | R1 | R2 | solvent | temp (°C) | ligand | yield (%) |
---|---|---|---|---|---|---|
1 | Ph | H | THF | 25 | dppf | 67 |
2 | Ph | Me | THF | 40 | dppf | 81 |
3 | Ph | Ph | THF | 40 | dppf | 75 |
4 | 4-F-C6H4 | H | THF | 25 | dppb | 66 |
5 | 4-F-C6H4 | Me | THF | 40 | dppb | 93 |
6 | 4-MeO-C6H4 | Me | THF | 40 | dppb | 85 |
7 | CH2Ph | Me | Toluene | 110 | dppf | 63 |
8 | CH2Ph | Ph | Toluene | 110 | dppf | 46 |
9 | H | Dioxane | 102 | dppb | 67 | |
10 | Me | Toluene | 110 | dppf | 26 |