反应详情

A solution of (5-bromo-1H-indazol-3-yl)-methanol (0.267 g, 1.18 mmol) in ethyl acetate (12 mL) was added with manganese dioxide (1.03 g, 11.8 mmol), and the mixture was stirred overnight at room temperature. The reaction mixture was filtered through Celite, and then the filtrate was concentrated to obtain 5-bromo-1H-indazole-3-carbaldehyde (0.179 g, 67%).

1. filtrationThe reaction mixture was filtered through Celite
2. concentrationthe filtrate was concentrated