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Title: H₃PW₁₂O₄₀ catalyzed efficient synthesis of 4-substituted coumarins
Authors: Raju, B China
Babu, T Hari
Rao, J Madhusudana
Keywords: Pechmann reaction;4-substituted coumarins;Phenols;β-ketoesters;Phosphotungstic acid
Issue Date: Jan-2009
Publisher: CSIR
Abstract: Phosphotungstic acid is commercially available and environmentally benign catalyst to promote the Pechmann condensation of various phenols with β-Ketoesters afford 4-substituted coumarins 3a-g in very good yields. This method is practical and provides several advantages.
Page(s): 120-123
ISSN: 0376-4699
Appears in Collections: IJC-B Vol.48B(01) [January 2009]

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