Table 1. Optimization of the cross-coupling reaction involving double deamination.

Reaction condition: 1 (0.3 mmol), 2 (0.9 mmol), [Ni] (0.045 mmol), ligand (0.045 mmol), NaI (0.5 M), DMA (3 ml), Ar atmosphere, and rt. Detected by gas chromatography with dodecane as the internal standard. NFE, nickel foam electrode; n.d., not detected.

Entry	Variation from the standard conditions	Yield [%]
1	None	74 (70)*
2	(+)C/(−)NFE, 2.5 equiv of B2pin2 or Et3N	n.d.
3	TBAB or TBAI or NaBr	33–62
4	2.5 mA/12 h	54
5	10 mA/3 h	65
6	No electricity	n.d.
7	W/o NiBr2 dme	Trace

*Isolated yield.