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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1726048Generated: November 1, 2026

Ammonium formate → 3-(1H-indol-2-yl)-1H-indazol-5-ol

https://huagongshe.com/reaction/1726048

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium formateHCID 2723923—
Reactant3-(1H-indol-2-yl)-5-phenoxy-1H-indazoleHCID 136342065—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product3-(1H-indol-2-yl)-1H-indazol-5-olHCID 13605597989.4%

Reaction Steps

A solution of 2.54 g of 3-(1H-indol-2-yl)-5-phenoxy-1H-indazole, of 2.83 g of ammonium formate and 2.54 g of palladium-on-charcoal at 10% in 150 ml of ethanol is refluxed for one hour. The catalyst is filtered through paper and rinsed with ethanol. The filtrate is concentrated to dryness to obtain 1.74 g of 3-(1H-indol-2-yl)-1H-indazol-5-ol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07491710B2
Source datasetuspto-grants-2009_02
ORD IDord-54d6543ecafe4281aa0970c7f41132e1
Source noteuspto-grants-2009_02