反应详情

From the reaction of 4-bromophenylhydrazine and ethylbutyrylacetate, 2-(4-bromphenyl)-2,4-dihydro-5-propyl-3H-pyrazol-3-one is obtained. Subsequent reaction with 2-ethylaniline yields 2-(4-bromophenyl)-4-(2-ethylanilinomethylene)-2,4-dihydro-5-propyl-3H-pyrazol-3-one, Mp.: 126.9° C.