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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1726069Generated: November 1, 2026

Ammonium formate → 1-(5-hydroxy-1H-indazol-1-yl)-Ethanone

https://huagongshe.com/reaction/1726069

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium formateHCID 2723923—
Reactant1-(5-(Benzyloxy)-1H-indazol-1-yl)ethan-1-oneHCID 22567249—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product1-(5-hydroxy-1H-indazol-1-yl)-EthanoneHCID 2256704891.9%

Reaction Conditions

Temperature50 °C

Reaction Steps

A suspension of 939 mg of 1-(5-benzyloxyindazol-1-yl)ethanone, 1.33 g of ammonium formate and 939 mg of palladium-on-charcoal at 10% in 100 ml of absolute ethanol is heated at around 50° C. for about thirty minutes. When gas is no longer being given off, the catalyst is filtered through a paper filter and rinsed with absolute ethanol. The filtrate is concentrated under reduced pressure in a rotary evaporator to obtain 571.1 mg of 1-(5-hydroxyindazol-1-yl)ethanone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07491710B2
Source datasetuspto-grants-2009_02
ORD IDord-bcffd5197f7943bd91e554aebc28d76f
Source noteuspto-grants-2009_02