期刊
TETRAHEDRON LETTERS
卷 55, 期 4, 页码 931-935出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2013.12.053
关键词
Aryl halides; Arylation; NH-heterocycles; Copper; Glycerol
A simple, efficient, and inexpensive copper catalyzed protocol has been developed for cross-coupling of indoles with aryl halides by using glycerol as a green recyclable solvent and DMSO as an additive. The reaction was carried out at low catalyst loading furnishing various N-aryl indoles in good to excellent yield. This copper/glycerol mixture was recycled up to four runs without any loss in its catalytic activity. (C) 2013 Elsevier Ltd. All rights reserved.
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