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Use of α-branched tertiary alkylmagnesium nucleophiles in Ni-catalyzed cross-coupling reactions with arylbromidesa
 | ||
|---|---|---|
| entry | product | yield |
| 1 |  |
73% (>50:1) |
| 2 |  |
76% (12:1) |
| 3 |  |
51%b (5:1) |
Average isolated yields of two runs. Ratio (determined by 1H spectroscopy) of retention product to isomerization product in parentheses.
Reaction was warmed to rt and stirred overnight.
