反应详情

A 3 M ethanolic solution of hydrazine (20 ml, 60 mmol) is added to 2-(4-chlorobenzoyl)benzoic acid (5.5 g, 20 mmol), and the mixture is stirred at room temperature for 5 hours. Precipitation gives 4-(4-chlorophenyl)-1-hydroxy-phthalazine.

1. customPrecipitation