Table 1.
entry | deviation from above | yielda | conversion |
---|---|---|---|
1. | BINAP | 14% | 71% |
2. | PCy3 | 2% | 44% |
3. | XPhos | 8% | 100% |
4. | SPhos | 26% | 100% |
5. | none | 47% | 100% |
6. | Me2i-PrSiH | 43%(87%)b | 100% |
7. | Me2i-PrSiH, MeOHc | 94% | 100% |
Ar = 4-butylbenzene
GC yields are reported.
Yield after 72 h reported in parenthesis.
MeOH added after the consumption of 1 (2 h). Total reaction time 4 h.