反应详情

温度

120 °C

5.0 g of the same 3-aminoindazole as Example 1 and 6.68 g of phthalic acid were added to 50 ml of dixoane, and the mixture was stirred for 5 hours at 120° C. The mixture was condensed under reduced pressure, 30 ml of diethyl ether was added and the mixture was stirred under cooling with ice and water for 30 minutes to separate crystals. The crystals were obtained by filtration and dried under reduced pressure to give 8.6 g of 3-phthalimidoindazole in a yield of 87%.

1. additionwas added
2. stirringthe mixture was stirred
3. customto separate crystals
4. customThe crystals were obtained by filtration
5. customdried under reduced pressure