Abstract
New Schiff base compounds 3-acetyl-2-oxo-2H-chromen-7-yl-4(alkyloxy) benzoate thiosem icarbazide have been synthesized from the reaction between thiosemicarbazide and substituted coumarin. Target compound were characterized by FT-IR and NMR techniques heterogeneous coumarin compound. The result confirms the structure as suggested
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