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- W2470376632 abstract "Advances in nickel catalysis have enabled the employment of the widely available and environmentally benign phenol derivatives as aryl electrophiles in Suzuki–Miyaura cross-coupling reactions. Ni<sup>II</sup>-phosphine complexes such as Ni<sup>II</sup>Cl<sub>2</sub>(PPh<sub>3</sub>)<sub>2</sub>, Ni<sup>II</sup>Cl<sub>2</sub>(dppf), Ni<sup>II</sup>Cl<sub>2</sub>(dppe), Ni<sup>II</sup>Cl<sub>2</sub>(dppp), Ni<sup>II</sup>Cl<sub>2</sub>(PCy<sub>3</sub>)<sub>2</sub> and π-Ni<sup>0</sup> complexes, the classic being Ni(COD)<sub>2</sub>/PCy<sub>3</sub>, both classes mostly in the presence of a mixed ligand, are some of the most successful precatalysts employed in the cross-coupling of aryl mesylates, sulfamates, carboxylic esters, carbonates, carbamates and methyl ethers with aryl boronic acids, boroxines and neopentylglycolboronates. Here we report that the highly reactive but bench-stable σ-Ni<sup>II</sup> complex, Ni<sup>II</sup>Cl(1-naphthyl)(PCy<sub>3</sub>)<sub>2</sub> (where σ refers to the Ni–C bond), exhibits higher efficiency than all previously reported precatalysts and facilitates the quantitative cross-coupling of all six C–O electrophiles mentioned above in reaction times of 0.5 to 24 hours." @default.
- W2470376632 created "2016-07-22" @default.
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- W2470376632 date "2016-06-28" @default.
- W2470376632 modified "2023-09-28" @default.
- W2470376632 title "NiIICl(1-Naphthyl)(PCy3)2, An Air-Stable σ-NiII Precatalyst for Quantitative Cross-Coupling of Aryl C–O Electrophiles with Aryl Neopentylglycolboronates" @default.
- W2470376632 doi "https://doi.org/10.1055/s-0035-1562343" @default.
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