反应详情

2-Methyl-4-phenyl-3-thiosemicarbazide (0.2 mole) was dissolved in about 75 ml of dimethylformamide and placed in a 3-necked round-bottomed flask equipped with magnetic stirrer, condenser, additional powder funnel and thermometer. Phthalic anhydride (0.2 mole) was added in portions at 20°. The contents were stirred overnight at room temperature, then poured into ice water the following morning. The resulting solid title product was recrystallized from a mixture of hexane and ethanol. (m.p. 155°-156°) yield, 70%

1. customplaced in a 3-necked round-bottomed flask
2. customequipped with magnetic stirrer, condenser, additional powder funnel
3. customThe resulting solid title product was recrystallized from a mixture of hexane and ethanol
4. custom(m.p. 155°-156°) yield