1H-Indazol-3-ylmethanol → HCID 178520025, 화합물

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A solution of 2.27 g of (1H-indazol-3-yl)methanol in 220 ml of 1,2-dimethoxyethane is added to 13.32 g of manganese dioxide. After one hour at a temperature in the region of 20° C., the reaction mixture is refluxed for 15 minutes. After cooling to a temperature in the region of 20° C., the reaction medium is filtered through a sinter funnel packed with Celite. The collected filtrate is concentrated under reduced pressure at a temperature in the region of 40° C. 2.02 g of 1H-indazole-3-carboxaldehyde are thus obtained in the form of a yellow powder, the characteristics of which are as follows:

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