Carbon-carbon cross-coupling reactions catalyzed by a two-coordinate nickel(II)-bis(amido) complex via observable Ni(I) , Ni(II) , and Ni(III) intermediates.
Carbon-carbon cross-coupling reactions catalyzed by a two-coordinate nickel(II)-bis(amido) complex via observable Ni(I) , Ni(II) , and Ni(III) intermediates.
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DOI:
10.1002/anie.201404577
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发表时间:
2014-07-07
影响因子:
16.6
通讯作者:
Tilley, T. Don
中科院分区:
文献类型:
--
作者:
Lipschutz, Michael I.;Tilley, T. Don
Recently, the development of more sustainable catalytic systems based on abundant first‐row metals, especially nickel, for cross‐coupling reactions has attracted significant interest. One of the key intermediates invoked in these reactions is a NiIII–alkyl species, but no such species that is part of a competent catalytic cycle has yet been isolated. Herein, we report a carbon–carbon cross‐coupling system based on a two‐coordinate NiII–bis(amido) complex in which a NiIII–alkyl species can be isolated and fully characterized. This study details compelling experimental evidence of the role played by this NiIII–alkyl species as well as those of other key NiIand NiIIintermediates. The catalytic cycle described herein is also one of the first examples of a two‐coordinate complex that competently catalyzes an organic transformation, potentially leading to a new class of catalysts based on the unique ability of first‐row transition metals to accommodate two‐coordinate complexes.
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影响因子:
15
作者:
Biswas S;Weix DJ
通讯作者:
Weix DJ
影响因子:
2.8
作者:
Breitenfeld, Jan;Vechorkin, Oleg;Hu, Xile
通讯作者:
Hu, Xile
影响因子:
8.4
作者:
Hu, Xile
通讯作者:
Hu, Xile
影响因子:
15
作者:
Ge S;Green RA;Hartwig JF
通讯作者:
Hartwig JF
影响因子:
4.9
作者:
Lipschutz, Michael I.;Tilley, T. Don
通讯作者:
Tilley, T. Don