Journal
JOURNAL OF FLUORINE CHEMISTRY
Volume 132, Issue 7, Pages 450-452Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jfluchem.2011.04.016
Keywords
Pentafluorophenylammonium triflate; Coumarins; Pechmann reaction; Phenols
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Funding
- Islamic Azad University, Tonekabon and Ayatollah Amoli Branch
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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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