An Electroreductive Approach to Radical Silylation via the Activation of Strong Si-Cl Bond.
An Electroreductive Approach to Radical Silylation via the Activation of Strong Si-Cl Bond.
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DOI:
10.1021/jacs.0c10899
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发表时间:
2020-12-23
影响因子:
15
通讯作者:
Lin S
中科院分区:
文献类型:
--
作者:
Lu L;Siu JC;Lai Y;Lin S
The construction of C(sp3)–Si bonds is important in synthetic, medicinal, and materials chemistry. In this context, reactions mediated by silyl radicals have become increasingly attractive but methods for accessing these intermediates remain limited. We present a new strategy for silyl radical generation via electroreduction of readily available chlorosilanes. At highly biased potentials, electrochemistry grants access to silyl radicals through energetically uphill reductive cleavage of strong Si–Cl bonds. This strategy proved to be general in various alkene silylation reactions including disilylation, hydrosilylation, and allylic silylation under simple and transition-metal-free conditions.
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