Convenient synthesis of 2-substituted indoles from 2-ethynylanilines with tetrabutylammonium fluoride

被引:121
作者
Yasuhara, A [1 ]
Kanamori, Y [1 ]
Kaneko, M [1 ]
Numata, A [1 ]
Kondo, Y [1 ]
Sakamoto, T [1 ]
机构
[1] Tohoku Univ, Fac Pharmaceut Sci, Aoba Ku, Sendai, Miyagi 9808578, Japan
来源
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1999年 / 04期
关键词
D O I
10.1039/a808842j
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The cyclization reaction of various 2-ethynylanilines, which were easily synthesized from 2-haloanilines by the palladium-catalyzed reaction with terminal alkynes, with tetrabutylammonium fluoride (TBAF) to yield 2-substituted indoles proceeded at refluxing or room temperature in THF in excellent yields without affecting the bromo, chloro, cyano, ethoxycarbonyl, and ethynyl groups.
引用
收藏
页码:529 / 534
页数:6
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