Substrate scope of substituted 3,4-dihydro-2(1H)-quinazolinesa.
| ||||
|---|---|---|---|---|
| Entry | Substrate (2) | Amine (3) | Product (4) | Yieldb (%) |
| 1 |
|
|
|
80 |
| 2 |
|
3a |
|
90 |
| 3 |
|
3a |
|
88 |
| 4 |
|
3a |
|
85 |
| 5 |
|
3a |
|
82 |
| 6 |
|
3a |
|
92 |
| 7 |
|
3a |
|
86 |
| 8 |
|
3a |
|
70 |
| 9 |
|
3a |
|
71 |
| 10 |
|
3a |
|
68 |
| 11 | 2i |
|
|
65 |
| 12 | 2f | 3b |
|
82 |
| 13 | 2h | 3b |
|
70 |
| 14 | 2f |
|
|
80 |
| 15 | 2h | 3c |
|
65 |
| 16 | 2i | 3c |
|
66 |
Unless otherwise specified, reactions were performed using 1 equiv. of 3a, 1.2 equiv. of 2b, 3.0 equiv. of base.
Isolated yield.