Iron-catalyzed oxidative homo-coupling of indoles via C–H cleavage
摘要:
A new method for the homo-coupling of indoles has been developed by the use of FeCl3 as catalyst and molecular oxygen as the only oxidant. The protocol provides a practical and straightforward approach toward 3,3'-biindolyls. (C) 2010 Elsevier Ltd. All rights reserved.
Brønsted Acid Catalyzed Cascade Reactions of 2-[(2-Aminophenyl)ethynyl]phenylamine Derivatives with Aldehydes: A New Approach to the Synthesis of 2,2′-Disubstituted 1<i>H</i>,1′<i>H</i>-3,3′-Biindoles
An unusual Brønsted acid catalyzed cascade reaction of 2-[(2-aminophenyl)ethynyl]phenylamine derivatives with aryl(heteroaryl)aldehydes to afford an efficient alternative entry into 2,2′-disubstituted-1H,1′H-3,3′-biindoles under metal-free conditions is reported.
Iron-catalyzed oxidative homo-coupling of indoles via C–H cleavage
作者:Tianmin Niu、Yuhong Zhang
DOI:10.1016/j.tetlet.2010.10.088
日期:2010.12
A new method for the homo-coupling of indoles has been developed by the use of FeCl3 as catalyst and molecular oxygen as the only oxidant. The protocol provides a practical and straightforward approach toward 3,3'-biindolyls. (C) 2010 Elsevier Ltd. All rights reserved.