The Hemetsberger-Knittel synthesis of substituted 5-, 6-, and 7-azaindoles

被引:32
|
作者
Roy, PJ [1 ]
Dufresne, C [1 ]
Lachance, N [1 ]
Leclerc, JP [1 ]
Boisvert, M [1 ]
Wang, ZY [1 ]
Leblanc, Y [1 ]
机构
[1] Merck Frosst Ctr Therapeut Res, Pointe Claire, PQ H9R 4P8, Canada
来源
SYNTHESIS-STUTTGART | 2005年 / 16期
关键词
Hemetsberger-Knittel reaction; azaindoles; thermolysis; cyclization; template;
D O I
10.1055/s-2005-872165
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A series of substituted 5-, 6-, and 7-azaindoles were prepared via the Hemetsberger-Knittel reaction. In general, better yields were obtained at higher temperatures and shorter reaction times than required for the formation of the analogous indoles, and in some cases, only decomposition occurred below a mininium ternperature. The resulting templates offer up to five sites for subsequent functionalization to allow a wide range of chemical diversity.
引用
收藏
页码:2751 / 2757
页数:7
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