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Nickel‐Catalyzed Selective Cross‐Coupling of Chlorosilanes with Organoaluminum Reagents

Nickel‐catalyzed cross‐coupling reactions of chlorosilanes with organoaluminum reagents were developed. An electron‐rich Ni(0)/PCy3 complex was found to be an effective catalyst for the desired transformation. The reaction of dichlorosilanes 1 proceeded to give the corresponding monosubstituted products 2. Trichlorosilanes 4 underwent selective double substitution to furnish the corresponding monochlorosilanes 2. Overall, the selective synthesis of a series of alkylmonochlorosilanes 2 from di‐ and trichlorosilanes was achieved using the present catalytic systems.