Facile synthesis of 2-bromoindoles by ligand-free CuI-catalyzed intramolecular cross-coupling of gem-dibromoolefins
作者:Baishan Jiang、Kemei Tao、Wang Shen、Jiancun Zhang
DOI:10.1016/j.tetlet.2010.09.129
日期:2010.12
A mild and efficient synthesis of 2-bromoindoles by ligand-free CuI-catalyzed intramolecular cross-coupling of gem-dibromoolefins was developed. Reactions were carried out in toluene at room temperature and the corresponding 2-bromoindoles were obtained in excellent yields. (C) 2010 Elsevier Ltd. All rights reserved.