反应详情

温度

82 °C

Hydrazine monohydrate (1.76 mL, 13 mmol) was added into a solution of 5-bromo-2-fluoro-3-phenylpyridine (326 mg, 1.29 mmol) in isopropanol (12 mL) at room temperature. The reaction mixture was heated gradually to 82° C. over 5 h and continued to heat overnight, cooled to room temperature and concentrated to give 1-(5-bromo-3-phenylpyridin-2-yl)hydrazine which was used directly in next step.

1. temperatureto heat overnight
2. temperaturecooled to room temperature
3. concentrationconcentrated