Selective, Efficient and Functional Group-Tolerant CuOAc-MediatedN-Arylation of 1H-Indoles and 9H-Carbazole with Aryl Iodides Under Base-Free and Ligandless Conditions
作者:Fabio Bellina、Chiara Calandri、Silvia Cauteruccio、Renzo Rossi
DOI:10.1002/ejoc.200601084
日期:2007.5
CuOAc-Mediated N-arylation of 1H-indole derivatives and 1H-carbazole with aryl iodides under base-free and ligandless conditions provides the required N-arylazoles with complete N-selectivity and in moderate to good yields. The experimental conditions for this new version of the Ullmann reaction allow an unprecedented tolerance of functional groups and facilitate the workup of the reaction mixtures and isolation
CuOAc 介导的 1H-吲哚衍生物和 1H-咔唑与芳基碘在无碱和无配体条件下的 N-芳基化提供了所需的 N-芳基唑,具有完全的 N-选择性和中等至良好的产率。这种新版本的 Ullmann 反应的实验条件允许官能团具有前所未有的耐受性,并促进反应混合物的处理和所需化学纯反应产物的分离。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)