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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1253477Generated: November 2, 2026

Phenylhydrazine → HCID 67207603, compound

https://huagongshe.com/reaction/1253477

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenylhydrazineHCID 7516—
ReactantHCID 21807119HCID 21807119—
SolventEthanolHCID 702—
ProductHCID 67207603HCID 67207603—

Reaction Conditions

Temperature150 °C

Reaction Steps

Methyl (2Z)-2-[(dimethylamino)methylene]-3-oxopentanoate (383 mg, 2.07 mmol) and phenylhydrazine (0.308 ml, 3.10 mmol) were added to ethanol (4 ml). The reaction mixture was heated to 150° C. in the Biotage Initiator Series microwave. After 30 minutes, the reaction mixture was cooled and concentrated. The residue was purified by column chromatography on silica gel (ethyl acetate/hexanes gradient) to afford methyl 5-ethyl-1-phenyl-1H-pyrazole-4-carboxylate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08455477B2
Source datasetuspto-grants-2013_06
ORD IDord-50f482caa8b44c6dab9701429a073d0c
Source noteuspto-grants-2013_06