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Bidentate P, N−P Ligand for Nickel-Catalyzed Cross-Coupling of Aryl or Benzyl Chlorides with ArMgX

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journal contribution
posted on 03.12.2010 by Raju Ghosh, Amitabha Sarkar
A cross-coupling reaction of a variety of aryl, heteroaryl, and benzyl chlorides with ArMgX is catalyzed by 2 mol % of a nickel−phosphine complex prepared in situ from an equimolar amount of Ni(CH3CN)2Cl2 and ligand (L2) to yield products in excellent yield in THF at room temperature. This new bidentate ligand (L2) is stable in air and forms a stable complex upon reaction with Ni(CH3CN)2Cl2. Structures of the ligand and the complex were confirmed by single-crystal X-ray diffraction.

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