eng Oriental Scientific Publishing Company Material Science Research India 0973-3469 2007-12-01 4 2 539 541 1850 article Synthesis of Pyrazoles from Hydrazones Under Microwave Irradiation V/S Conventional Heating

Aromatic hydrazones were cyclised in the presence of formic acid to gave pyrazoles under microwave irradiation and conventional heating and the rate of reaction by microwave irradiation was found to be 250 times than the conventional heating method.

 https://www.materialsciencejournal.org/vol4no2/synthesis-of-pyrazoles-from-hydrazones-under-microwave-irradiation-vs-conventional-heating/ Hydrazones pyrazoles formic acid water fungicide