Table 5.

Exploring product selectivity in Ni-catalyzed arylation of 1,3-dichlorobenzene^a,b

entry	PR3	solvent	ArB(OH)2 (equiv)	2s (%)	3s (%)	2s : 3s
1	PPh2Me	MeCN	1.1	63	16	4 : 1
2		THF	1.1	50	24	2 : 1
3	PCy3	MeCN	1.1	6	36	1 : 6
4		THF	1.1	6	48	1 : 8
5		MeCN	2.2	9	63	1 : 7
6		THF	2.2	7	90	1 : 13

^aReactions performed on 0.1 mmol scale (c = 0.2 M).

^bYields determined by ¹⁹F NMR using trifluorotoluene as internal standard.