Table 2.

Kumada coupling of 4-chloroanisole and o-tolylmagnesium chloride employing various nickel(II) precatalysts.^‡

Entry	Catalyst	Yield
1	3	92
2	4	89
3	5	90
4	6	87
5	11	82
6	12	82
7	13	84
8	14	91

^‡Conditions: 1.0 mmol 4-chloroanisole; 1.3 mmol o-tolyl Grignard; 3 mL toluene; 12 h. Yields reported for isolated product.