反应详情

温度

60 °C

Follow modified procedure from WO 99/35146. 1-(3-Fluoro-benzyl)-5-nitro-1H-indazole (2.49 g, 9.2 mmol) is suspended in 40 ml absolute EtOH and Pt/C (5%, wet, 150 mg) is added. The reaction mixture is stirred and heated at 60° C. under a hydrogen atmosphere (balloon). Roughly 4 hours into the reaction LC/MS reveals the formation of substantial amounts of product. The mixture is filtered through Celite and concentrated under reduced pressure. Yield: 2.01 g (90.8%) of a white solid.

1. customRoughly 4 hours into the reaction LC/MS
2. filtrationThe mixture is filtered through Celite
3. concentrationconcentrated under reduced pressure