Practical, scalable, and transition metal-free visible light-induced heteroarylation route to substituted oxindoles.
Practical, scalable, and transition metal-free visible light-induced heteroarylation route to substituted oxindoles.
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DOI:
10.1039/d2sc05918e
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发表时间:
2023-01-25
期刊:
影响因子:
8.4
通讯作者:
中科院分区:
文献类型:
--
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The synthetic application of (hetero)aryl radicals in organic synthesis has been known since the last century. However, their applicability has significantly suffered from ineffective generation protocols. Herein, we present a visible-light-induced transition metal-free (hetero)aryl radical generation from readily available (hetero)aryl halides for the synthesis of 3,3′-disubstituted oxindoles. This transformation is amenable to a wide range of (hetero)aryl halides as well as several easily accessible acrylamides, and it is also scalable to multigram synthesis. Finally, the versatility of the oxindole products is demonstrated through their conversion to a variety of useful intermediates applicable to target-directed synthesis. A novel photoinduced heteroarylation route to substituted oxindoles is disclosed.
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