Abstract
AbstractN,N′‐Bis(2,6‐diisopropylphenyl)imidazolium chloride associated with nickel(II) acetylacetonate (3–5 mol %) was used as catalyst to efficiently cross‐couple functionalized aryl bromides with organomanganese reagents. The reactions were performed between 0 °C and room temperature, giving unsymmetrical biaryls in 0.25 to 24 h with 52 to 100 % yields for isolated materials. Aryl chlorides showed slightly diminished reactivity in Ni/2 IPr‐catalyzed cross‐couplings and good yields could only be attained with activated or neutral substrates.
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