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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2093786Generated: October 30, 2026

Hydrazine → HCID 178422686, compound

https://huagongshe.com/reaction/2093786

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
ReactantHCID 67170049HCID 67170049—
ReactantHCID 178422698HCID 178422698—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
SolventMethanolHCID 887—
ProductHCID 178422686HCID 178422686—

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 1-(2,5-dimethyl-4-nitrophenyl)-3-(dimethylamino)but-2-en-1-one (100 mg, 0.38 mmol) and hydrazine (60 uL, 1.9 mmol) in ethanol (3 mL) was heated in a microwave at 100° C. for 15 min. The obtained 5-(2,5-dimethyl-4-nitrophenyl)-3-methylpyrazol was dissolved in methanol (10 mL). To the solution was added Pd/C (10%). The reaction mixture was degassed and purged with H2 for several times and stirred under 1 atm. hydrogen gas overnight. The mixture was filtered and concentrated to afford 2,5-Dimethyl-4-(3-methyl-1H-pyrazol-5-yl)aniline. ESMS m/z 202 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08445505B2
Source datasetuspto-grants-2013_05
ORD IDord-a3eeb4a537b9461c9aa40d833f877fbe
Source noteuspto-grants-2013_05