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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 577744Generated: October 31, 2026

Ammonium Chloride → 4-amino-3-methyl-1H-Pyrazole-1-acetonitrile

https://huagongshe.com/reaction/577744

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactant(3-Methyl-4-nitro-1H-pyrazol-1-YL)acetonitrileHCID 19620685—
CatalystIronHCID 23925—
SolventMethanolHCID 887—
SolventWaterHCID 962—
Product4-amino-3-methyl-1H-Pyrazole-1-acetonitrileHCID 8667967320.6%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of (3-methyl-4-nitro-1H-pyrazol-1-yl)acetonitrile (2.6 g, 15.7 mmol), NH4Cl (3.4 g, 62.7 mmol) and Fe powder (3.5 g, 62.7 mmol) in MeOH (60 mL) and water (12 mL) was stirred at 80° C. for 2 days. The mixture was filtered, concentrated and the residue was purified by flash chromatography (MeOH: CH2Cl2 20:1) to give the title compound (440 mg, 15% yield) as brown oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09040547B2
Source datasetuspto-grants-2015_05
ORD IDord-616e9d627a014a508b830f9e3eac7751
Source noteuspto-grants-2015_05