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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1943929Generated: November 2, 2026

Ammonium Chloride → HCID 67089157, compound

https://huagongshe.com/reaction/1943929

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantHCID 67089033HCID 67089033—
CatalystIronHCID 23925—
SolventEthanolHCID 702—
SolventWaterHCID 962—
SolventWater ethylacetateHCID 22728543—
ProductHCID 67089157HCID 6708915792%

Reaction Conditions

Temperature85 °C

Reaction Steps

Fe (0) (0.251 g, 4.49 mmol) and ammonium chloride (0.600 g, 11.2 mmol) were added to 1-(4-methoxybenzyl)-3-(2-methoxyethoxy)-5-nitro-1H-pyrazolo[3,4-b]pyridine (402 mg, 1.12 mmol) in EtOH (8 mL) and water (3.7 mL). The mixture was stirred at 85° C. for 5 hours. The mixture was diluted with EtOAc-water and filtered through GF/F paper. The filtrate was diluted with aqueous bicarbonate and extracted with EtOAc (3×12 mL), dried over sodium sulfate, decanted and concentrated to provide 1-(4-methoxybenzyl)-3-(2-methoxyethoxy)-1H-pyrazolo[3,4-b]pyridin-5-amine (338 mg, 92%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08394795B2
Source datasetuspto-grants-2013_03
ORD IDord-1086efc467704951b523f0baa0331f3a
Source noteuspto-grants-2013_03