期刊
TETRAHEDRON
卷 71, 期 3, 页码 431-435出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2014.12.008
关键词
Copper catalyst; Benzoxazole derivatives; C-Heteroatom bond formation; One-pot
资金
- Natural Science Foundation of China [21072095]
- National High Technology Research and Development Program of China (863 Program) [2014AA022100]
- Graduate Student Innovation Project in Jiangsu Province [CXLX13_433]
N-(2-Chloro-phenyl)-2-halo-benzamides (halo=I/Br/Cl) as substrates were used for the one-pot synthesis of 2-arylbenzoxazole derivatives via copper-catalyzed intermolecular C-N/intramolecular C-O couplings with primary amines. This aryl amination offers clean reaction conditions and easy work-up in good yields by using CuI as catalyst, readily available 8-hydroxyquinoline as ligand, K3PO4 as base, DMF as solvent. (C) 2014 Elsevier Ltd. All rights reserved.
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