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Microwave-Assisted Synthesis of Coumarins via Pechmann Condensation in Wet Phosphoric Acid Imidazolium Dihydrogenphosphate

โœ Scribed by Valizadeh, Hassan; Kordi, F. Mahmoodi; Gholipur, Hamid; Amiri, Mohammad


Book ID
126910456
Publisher
Taylor and Francis Group
Year
2009
Tongue
English
Weight
139 KB
Volume
184
Category
Article
ISSN
1042-6507

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Microwave assisted synthesis of coumarin
โœ Hassan Valizadeh; H. Gholipur; Abbas Shockravi ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› Journal of Heterocyclic Chemistry ๐ŸŒ English โš– 222 KB

## Abstract magnified image A variety of substituted coumarins have been prepared __via__ an inexpensive and efficient potassium carbonate catalyzed Knoevenagel condensation of salisylaldehydes with acidic methylene compounds in ionic liquid media. 1โ€__n__โ€Butylโ€3โ€methylimidazolium bromide has bee