反应详情

From the reaction of 2-pyridylhydrazine and ethylbutyrylacetate, 2,4-dihydro-2-(2-pyridyl)-5-propyl-3H-pyrazol-3-one is obtained. Subsequent reaction with 2-ethylaniline yields 4-(2-ethylanilinomethylene)-2,4-dihydro-2-(2-pyridyl)-5-propyl-3H-pyrazol-3-one, Mp 151° C.