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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 628544Generated: October 30, 2026

Hydrazine → 4-butyl-3,5-dimethyl-1H-pyrazole

https://huagongshe.com/reaction/628544

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
Reactant3-Butylpentane-2,4-dioneHCID 73763—
SolventEthanolHCID 702—
Product4-butyl-3,5-dimethyl-1H-pyrazoleHCID 12933276102.6%

Reaction Steps

At room temperature, to a mixture of 3-butyl-pentane-2,4-dione 7 g and ethanol 70 ml was added hydrazine one hydrate 3.3 g and the resulting mixture was stirred for twelve hours. The reaction mixture was subjected to a silica gel column chromatography to give 4-butyl-3,5-dimethyl-1H-pyrazole 7 g.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09314023B2
Source datasetuspto-grants-2016_04
ORD IDord-b936d19030ab41229f494a98cfba8d5a
Source noteuspto-grants-2016_04