Metal-Free, Oxidant-Free, Site-Selective C-H Halogenations to Aminoquinolines at Room Temperature using N-Halosaccharins

被引:18
|
作者
Dutta, Himangsu Sekhar [1 ]
Khan, Bhuttu [1 ]
Khan, Afsar Ali [1 ]
Raziullah [1 ]
Ahmad, Ashfaq [1 ]
Kant, Ruchir [2 ]
Koley, Dipankar [1 ]
机构
[1] Cent Drug Res Inst, Med & Proc Chem Div, CSIR, Lucknow 226031, Uttar Pradesh, India
[2] Cent Drug Res Inst, Mol & Struct Biol Div, CSIR, Lucknow 226031, Uttar Pradesh, India
来源
CHEMISTRYSELECT | 2017年 / 2卷 / 22期
关键词
C-H functionalization; halogenations; late stage drug molecule diversification; metal-free; quinoline; REMOTE C; REGIOSELECTIVE HALOGENATION; 8-AMINOQUINOLINE AMIDES; DIRECTING GROUP; DIRECT ALKYLATION; SODIUM-HALIDES; COPPER; QUINOLINES; ARYLATION; QUINAZOLINE;
D O I
10.1002/slct.201701649
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report a metal-free, oxidant-free, highly regioselective halogenations protocol (chlorination, bromination and iodination) to amidoquinolines using N-halosaccharin derivatives. Various amidoquinolines are tolerated by the method and delivered C5-haloamidoquinoline derivates in excellent yields. A homo and hetero bis-halogenation protocol has also been established. Late stage drug molecule diversification has also been demonstrated using the developed protocol.
引用
收藏
页码:6488 / 6492
页数:5
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