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H₃PW₁₂O₄₀ catalyzed efficient synthesis of 4-substituted coumarins

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Field Value
 
Title H₃PW₁₂O₄₀ catalyzed efficient synthesis of 4-substituted coumarins
 
Creator Raju, B China
Babu, T Hari
Rao, J Madhusudana
 
Subject Pechmann reaction
4-substituted coumarins
Phenols
β-ketoesters
Phosphotungstic acid
 
Description 120-123
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.
 
Date 2009-01-30T11:26:59Z
2009-01-30T11:26:59Z
2009-01
 
Type Article
 
Identifier 0376-4699
http://hdl.handle.net/123456789/2934
 
Language en_US
 
Publisher CSIR
 
Source IJCB Vol.48B(1) [January 2009]