反应详情

温度

0 °C

4-Methoxycarbonylbenzoic N′-(1-(1-(3,4-dimethylphenyl)-3-trifluoromethyl-5-oxo-1,5-dihydropyrazol-4-ylidene)-ethyl)-hydrazide (0.107 mmol, 50.7 mg) was dissolved in methanol (2 ml) and stirred with 1M aqueous sodium hydroxide (0.534 mmol, 0.534 ml) at room temperature for 2 hours and at 60° C. for 1.5 hours. Then, the reaction vessel was cooled to 0° C., and 1M hydrochloric acid (0.534 mmol, 0.534 ml) and water were added. The precipitated solid was collected by filtration with water and dried to obtain 4-carboxybenzoic N′-(1-(1-(3,4-dimethylphenyl)-3-trifluoromethyl-5-oxo-1,5-dihydropyrazol-4-ylidene)-ethyl)-hydrazide as a yellow solid (43.8 mg, 89%).

1. filtrationThe precipitated solid was collected by filtration with water
2. customdried