Table 9.
Entry | -FG | X | R | Cat. (%) |
Conditions | Yieldb (%) |
---|---|---|---|---|---|---|
1 | -4-COOH | Cl | Octyl | 0.05 | 100 °C, 20 h | 81 |
2 | Br | Octyl | 0.05 | 100 °C, 20 h | 72 | |
3 | Br | secBu | 0.05 | 100 °C, 20 h | 92 | |
4 | I | secBu | 0.05 | 100 °C, 48 h | 78 | |
5 | -4-CONH2 | Cl | isoBu | 0.5 | 100 °C, 20 h | 67 |
6 | Br | isoBu | 0.05 | 100 °C, 20 h | 85 | |
7c | -4-COCH3 | Cl | Octyl | 0.5 | 70 °C, 20 h | 91 |
8d | Cl | Octyl | 0.5 | 110 °C, 24 h | 74 | |
9 | Cl | Octyl | 0.05 | 100 °C, 16 h | 61 | |
10d | I | Octyl | 1.0 | 110 °C, 24 h | 78 | |
11c | Cl | Cyclohexyl | 0.5 | 70 °C, 20 h | 87 | |
12d | Br | Cyclohexyl | 1.0 | 110 °C, 24 h | 82 | |
13 | -4-NHCOCH3 | Br | Octyl | 0.05 | 100 °C, 20 h | 98 |
14 | I | Octyl | 0.5 | 110 °C, 20 h | 67 | |
15 | -3-NHCOCH3 | Cl | Cyclohexyl | 0.05 | 100 °C, 24 h | 74 |
16 | -4-CH2OH | Br | isoBu | 0.05 | 100 °C, 48 h | 72 |
17 | I | isoBu | 0.05 | 100 °C, 20 h | 47 | |
18 | -4-CH(OH)CH3 | Cl | secBu | 0.5 | 100 °C, 18 h | 83 |
19 | -4-CH2CH2OH | Cl | Octyl | 0.5 | 100 °C, 20 h | 89 |
20 | -3-OH | Cl | Bn | 0.5 | 100 °C, 20 h | 84 |
21 | Br | Bn | 0.5 | 100 °C, 20 h | 85 | |
22 | Br | Cyclohexyl | 0.5 | 100 °C, 36 h | 81 | |
23 | I | Cyclohexyl | 1.0 | 100 °C, 20 h | 70 | |
24 | -4-OH | Cl | Octyl | 2.0 | 100 °C, 18 h | 72 |
25d | -4-CO2Me | Cl | isoBu | 1.0 | 110 °C, 24 h | 94 |
26d | -4-CO2Et | I | secBu | 2.0 | 110 °C, 48 h | 77 |
27d | -3-CO2Me | Cl | isoBu | 1.0 | 110 °C, 24 h | 91 |
28d | Br | isoBu | 1.0 | 110 °C, 24 h | 97 | |
29d | -2-CO2Me | Cl | Bn | 2.0 | 110 °C, 24 h | 82 |
30d | -4-NO2 | I | Octyl | 1.0 | 110 °C, 24 h | 79 |
Reactions conducted with a 1:1 ratio of metal to ligand, 1.0 mmol ArX (X = Cl, Br, I), 1.2 equiv amine, and 2.4 equiv LiN(SiMe3)2 in 1 mL DME.
Isolated yields.
Reactions run at 0.2 M.
Using K3PO4 as the base.