Table 1.
| |||||||
---|---|---|---|---|---|---|---|
Entry | L | 5% PTC | Yielda | Entry | L | 5% PTC | Yielda |
1 | 1 | -- | 26% | 6 | 3 | TDA | 10% |
2 | 1 | TDA | 52% | 7 | 4 | TDA | 0% |
3 | 1 | TBACl | 3% | 8 | 5 | TDA | 0% |
4 | 1 | 15-C-5 | 33% | 9 | 1 | -- | 2%b |
5 | 2 | TDA | 0% | 10 | 1 | TDA | 99%c |
4-chloro-n-butylbenzene (1 mmol), NaNO2 (2.0 mmol), Pd2(dba)3 (0.5 mol%), ligand (1.2 mol%), t-BuOH (2 mL), 110 °C, 24 h; GC yields.
(TBA)NO2 was used.
Reaction temperature was 130 °C.