反应详情

温度

75 °C

2,3-dihydroxybenzaldehyde (95.8 mg, 0.69 mmol) and Meldrum's acid (100 mg, 0.69 mmol) were combined in H2O (1 mL). The solution was stirred at 75° C. for 2 h. After cooling to room temperature, the precipitate was filtered and dried at suction to give 8-hydroxy-3-carboxy-coumarin.

1. temperatureAfter cooling to room temperature
2. filtrationthe precipitate was filtered
3. customdried at suction