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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1790313Generated: October 30, 2026

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

https://huagongshe.com/reaction/1790313

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 numberUS07071198B1
Source datasetuspto-grants-2006_07
ORD IDord-8f872610fe0847baa821c66233be02f3
Source noteuspto-grants-2006_07