Journal
ORGANIC LETTERS
Volume 23, Issue 15, Pages 5983-5987Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.1c02063
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Funding
- National Natural Science Foundation of China [22071171]
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An electrochemical method has been developed for the site-selective C-H cyanation of indoles using readily available TMSCN as the cyano source. The use of tris(4-bromophenyl)amine as a redox catalyst results in better yield and regioselectivity, leading to satisfactory yields of both C2- and C3-cyanated indoles. The reactions are conducted in a simple undivided cell at room temperature, eliminating the need for transition-metal reagents and chemical oxidants.
An electrochemical approach for the site-selective C-H cyanation of indoles employing readily available TMSCN as cyano source has been developed. The electrosynthesis relies on the tris(4-bromophenyl)amine as a redox catalyst, which achieves better yield and regioselectivity. A variety of C2- and C3-cyanated indoles were obtained in satisfactory yields. The reactions are conducted in a simple undivided cell at room temperature and obviate the need for transition-metal reagent and chemical oxidant.
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