General and Efficient Synthesis of Indoles through Triazene-Directed C-H Annulation

被引:211
作者
Wang, Chengming [1 ]
Sun, Huan [1 ]
Fang, Yan [1 ]
Huang, Yong [1 ]
机构
[1] Peking Univ, Shenzhen Grad Sch, Sch Chem Biol & Biotechnol, Key Lab Chem Genom, Shenzhen, Peoples R China
关键词
C-H activation; indole; N-N cleavage; rhodium; triazene; N-ARYL ENAMINES; BOND FORMATION; 2,3-DISUBSTITUTED INDOLES; STEREOSELECTIVE-SYNTHESIS; OXIDATIVE CYCLIZATION; CATALYZED ANNULATION; O BOND; ACTIVATION; FUNCTIONALIZATION; ALKALOIDS;
D O I
10.1002/anie.201301742
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Unprotected indoles are prepared with the title method, which has a wide scope for alkynes. Excellent regioselectivity was accomplished for aryl-alkyl and alkyl-alkyl disubstituted acetylenes. This reaction features an unusual 1,2 rhodium migration and ring-contraction-triggered N-N bond cleavage. It allows rapid conversion of the reaction products into several functional molecules. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:5795 / 5798
页数:4
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