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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1167513Generated: October 27, 2026

Hydrazine hydrate (1:1) → HCID 22037606, compound

https://huagongshe.com/reaction/1167513

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 22037365HCID 22037365—
SolventEthanolHCID 702—
ProductHCID 22037606HCID 22037606—

Reaction Steps

A solution of 4-(2-methylphenyl)-3-(4-pyridyl)-3,4-epoxy-2-butanone (step 2) (0.11 g, 0.434 mmol) and hydrazine hydrate (0.043 g, 0.868 mmol) in ethyl alcohol (50 ml) was heated at reflux for 20 hours. The solvent was removed and the resulting residue was purified by chromatography to give 4-[5-methyl-3-(2-methylphenyl)-1H-pyrazol-4-yl]pyridine: Anal. Calc'd for C16H15N3 (249.32): C, 77.08; H, 6.06; N, 16.85. Found: C, 76.66; H, 5.91; N, 16.84.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06617324B1
Source datasetuspto-grants-2003_09
ORD IDord-9a982468ba7245548639922973bcb679
Source noteuspto-grants-2003_09