Table 1.
| ||||
---|---|---|---|---|
Entrya | Solvent (Conc.) | 21 (equiv)b | Convc | 22:23c |
1 | CH2Cl2 (5 M) | 1.2 | 0% | - : - |
2 | DCE (5 M) | 1.2 | 0% | - : - |
3 | DMF (5 M) | 1.2 | 33% | 1 : 1 |
4 | Acetone (5 M) | 1.2 | 37% | 3.5 : 1 |
5 | Acetone (1 M) | 5.0 | 56%d | 4.0 : 1 |
All reactions were run using 0.1 mmol (20), and 10 mol% [CpRu(MeCN)3]PF6 at rt for 14 h.
21 was added as a solution drop-wise over 1h using a syringe pump.
Determined by 1H NMR.
Isolated yield.