期刊
JOURNAL OF FLUORINE CHEMISTRY
卷 132, 期 7, 页码 450-452出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jfluchem.2011.04.016
关键词
Pentafluorophenylammonium triflate; Coumarins; Pechmann reaction; Phenols
资金
- Islamic Azad University, Tonekabon and Ayatollah Amoli Branch
Pentafluorophenylammonium triflate (PFPAT) is used as an efficient catalyst in the von Pechmann condensation of phenols with beta-ketoesters leading to the formation of coumarin derivatives. Short reaction times, easy and quick isolation of the products, excellent chemoselectivity, excellent yields and ease of catalyst recovery with consistent activity makes this protocol efficient and environmentally benign. (C) 2011 Elsevier B.V. All rights reserved.
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