Synthesis of Halogenated Anilines by Treatment of N, N-Dialkylaniline N-Oxides with Thionyl Halides.
Synthesis of Halogenated Anilines by Treatment of N, N-Dialkylaniline N-Oxides with Thionyl Halides.
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DOI:
10.1021/acs.joc.8b01590
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发表时间:
2018-09-21
期刊:
影响因子:
--
通讯作者:
Chain WJ
中科院分区:
文献类型:
--
作者:
Reed H;Paul TR;Chain WJ
The special reactivity of N,N-dialkylaniline N-oxides allows practical and convenient access to electron-rich aryl halides. A complementary pair of reaction protocols allow for the selective para-bromination or ortho-chlorination of N,N-dialkylanilines in up to 69% isolated yield. The generation of a diverse array of halogenated anilines is made possible by a temporary oxidation level increase of N,N-dialkylanilines to the corresponding N,N-dialkylaniline N-oxides and the excision of the resultant weak N–O bond via treatment with thionyl bromide or thionyl chloride at low temperature.
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期刊:
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影响因子:
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通讯作者:
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