Novel synthesis of fused indoles and 2-substituted indoles by the palladium-catalyzed cyclization of N-cycloalkenyl-o-haloanilines

被引:25
作者
Maruyama, Jun [1 ]
Yamashita, Hiromichi [1 ]
Watanabe, Takeshi [1 ]
Arai, Shigeru [1 ]
Nishida, Atsushi [1 ]
机构
[1] Chiba Univ, Grad Sch Pharmaceut Sci, Inage Ku, Chiba 2638522, Japan
关键词
Indole; Palladium; Heck reaction; Olefin isomerization; Enamine; INTRAMOLECULAR HECK REACTION; ONE-POT SYNTHESIS; ASYMMETRIC-SYNTHESIS; ANNULATION; ENAMINONES; NITROGEN; DECALIN; WITTIG;
D O I
10.1016/j.tet.2008.12.028
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A now palladium-catalyzed cyclization of N-alkenyl-o-haloanilines with selective isomerization of a double bond followed by formal 5-endo-trig cyclization was developed. A variety of fused and 2-substituted indoles were synthesized from enaminoesters; prepared by condensation of beta-ketoesters and o-iodoaniline. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1327 / 1335
页数:9
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