期刊
TETRAHEDRON LETTERS
卷 47, 期 29, 页码 5045-5048出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2006.05.103
关键词
Ullmann ether synthesis; microwave
Ullmann ether synthesis was conducted on a variety of chloro-heterocycles with different phenols using optimized conditions involving copper powder and cesium carbonate. On many substrates, microwave heating afforded higher yields in significantly shorter reaction times compared to conventional heating conditions. These findings provide a facile method for aryl ether synthesis from chloropyridines, chloroquinolines, and chlorobenzothiazoles. (c) 2006 Elsevier Ltd. All rights reserved.
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