Iron-Nickel Dual-Catalysis: A New Engine for Olefin Functionalization and the Formation of Quaternary Centers.

Iron-Nickel Dual-Catalysis: A New Engine for Olefin Functionalization and the Formation of Quaternary Centers.
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DOI:
10.1021/jacs.8b05868
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发表时间:
2018-09-12
影响因子:
15
通讯作者:
Shenvi RA
Shenvi RA
中科院分区:
化学1区
文献类型:
--
作者:
Green SA;Vásquez-Céspedes S;Shenvi RA

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Alkene hydroarylation forms carbon–carbon bonds between two foundational building blocks of organic chemistry: olefins and aromatic rings. In the absence of electronic bias or directing groups, only the Friedel–Crafts reaction can engage alkenes with Markovnikov selectivity to generate quaternary carbons. However, the intermediacy of carbocations precludes the use of electron-deficient arenes, including Lewis basic heterocycles. Here we report a highly Markovnikov-selective, dual-catalytic olefin hydroarylation that tolerates arenes and heteroarenes of any electronic character. Hydrogen atom transfer controls the formation of branched products and arene halogenation specifies attachment points on the aromatic ring. Mono-, di-, tri- and tetra-substituted alkenes yield Markovnikov products including quaternary carbons within non-strained rings.
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