Table 1. Suzuki-Miyaura cross-coupling of (Z)-Br-1.
| ||||
---|---|---|---|---|
Entry | 14 | 15 | Conditions | % Isolated yield |
1 | Pd2(dba)3, XPhos K3PO4, THF, 35 °C | 55% | ||
2 | Pd2(dba)3, XPhos K3PO4, THF, 35 °C | 85% | ||
3 | Pd2(dba)3, XPhos K3PO4, THF, 35 °C | 64% | ||
4 | Pd2(dba)3, P(o-tol)3 Ag2O, THF, 23 °C | 72% | ||
5 | Pd2(dba)3, P(o-tol)3 Ag2O, THF, 23 °C | 92% | ||
6 | Pd(OAc)2, SPhos K3PO4, THF, 23 °C | 70% | ||
7 | Pd(OAc)2, XPhos Cs2CO3, THF, 23 °C | 64% | ||
8 | Pd(OAc)2, XPhos Cs2CO3, THF, 23 °C | 60% |