Table 1. Optimization of the Reactiona.
1 (1 equiv, 0.2 mmol), 2(2.0 equiv), NiBr2·diglyme (10 mol %), dppf (10 mol %), K2HPO4 (2.0 equiv), Zn (2.5 equiv), 4 Å MS in DMA (0.6 mL) at 100 °C, 6 h.
Yields calculated by GC-FID using dodecane as internal standard.
Isolated yield.