Development of practical methodologies for the synthesis of novel 3(4-oxo-4H-chromen-3-yl)acrylic acid hydrazides

► Synthesis of 3(4-oxo-4H-chromen-3yl)acrylic acid hydrazide by using EDCl/HOBt. ► This method provides clean, conversion, greater selectivity and easy workup. ► New environmentally-benign and economic perspective.