期刊
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
卷 2007, 期 13, 页码 2147-2151出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.200601084
关键词
C-N coupling; copper; selectivity; synthetic methods; indoles; carbazole
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 of the required chemically pure reaction products. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007).
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