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8721287 
Journal Article 
An efficient synthesis of formyl coumarins by microwave irradiation method duff formylation 
Chavan, OS; Chavan, SB; Baseer, MA 
2015 
Der Pharma Chemica
ISSN: 0975-413X 
7 
1 
197-200 
English 
Armyl derivatives of Coumarins have been synthesized by Duff formylation method, in this method hydroxyl Coumarins was reacted with hexamethylene tetramine (HMTA) in presence of tri-fluoroacetic acid (TFAA) under microwave irradiation techniques. The structures of all synthesized compounds were confirmed by IR, NMR, Mass and CHN analysis. This is a newly developed efficient synthesis of formyl Coumarins under microwave irradiation technique by Duff formylation method. 
Coumarins; Duff formylation