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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1783300Generated: October 29, 2026

Methylhydrazine → HCID 23084651, compound

https://huagongshe.com/reaction/1783300

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylhydrazineHCID 6061—
Reactant2-(4-Fluorophenyl)-3-oxobutanenitrileHCID 3013886—
SolventEthanolHCID 702—
ProductHCID 23084651HCID 23084651—

Reaction Steps

α-Acetyl-4-fluorophenylacetonitrile (65.1 g) and methylhydrazine (30.9 mL) were dissolved in ethanol (320 mL), and the mixture was heated under reflux for 3 hrs. After the completion of the reaction, the reaction mixture was cooled to room temperature, and the solvent was evaporated. The obtained solid was collected by filtration and washed with hexane to give 5-amino-4-(4-fluorophenyl)-1,3-dimethylpyrazole (69.5 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07501412B2
Source datasetuspto-grants-2009_03
ORD IDord-cddb9af07abf41b494cfeb8ed3d46cb9
Source noteuspto-grants-2009_03