期刊
TETRAHEDRON LETTERS
卷 45, 期 43, 页码 7999-8001出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2004.09.013
关键词
coumarins; Pechmann condensation; Lewis acid catalysts
Samarium(III) nitrate hexahydrate as a catalyst is used as an alternative to conventional acid catalysts in the von Pechmann condensation of phenols with ethyl acetoacetate leading to the formation of coumarin derivatives. (C) 2004 Elsevier Ltd. All rights reserved.
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