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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 706717Generated: October 26, 2026

Ammonium Chloride → 1-benzyl-1H-indazol-4-amine

https://huagongshe.com/reaction/706717

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactant1-benzyl-4-nitro-1H-indazoleHCID 21327256—
CatalystIronHCID 23925—
SolventWater ethanolHCID 19096565—
Product1-benzyl-1H-indazol-4-amineHCID 2132731799%

Reaction Steps

A solution of 1-benzyl-4-nitro-1H-indazole (0.404 g, 1.595 mmol), ammonium chloride (0.043 g, 0.798 mmol) in 4:1 v/v EtOH/water (10 mL) was treated with iron (0.891 g, 15.95 mmol) and refluxed for 2 hours. The mixture was concentrated and the residue taken in EtOAc/water, filtered through glass fiber filter paper and concentrated again to provide 1-benzyl-1H-indazol-4-amine (0.353 mg, 99% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09174981B2
Source datasetuspto-grants-2015_11
ORD IDord-8cf920ee9d0b4aa597705a98737a8dd1
Source noteuspto-grants-2015_11