反应详情

温度

120 °C

A mixture of 3-bromo-2-chloro-4-(4-chlorophenyl)pyridine (10 g, 33 mmol), pyridine (50 mL) and hydrazine monohydrate (4.8 g, 96 mmol) was heated to 120° C. for 16 h. After cooling to room temperature, water (300 mL) was added, which caused solid desired product to precipitate. This was filtered, washed with water (2×50 mL), and dried to obtain the title compound as a pale yellow solid (6 g), which was used without further purification.

1. temperatureAfter cooling to room temperature