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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 917813Generated: October 29, 2026

Hydrazine → 3,5-Diphenyl-1H-pyridazin-4-one

https://huagongshe.com/reaction/917813

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
Reactant4-(Diethylamino)-1,3-diphenylbut-3-ene-1,2-dioneHCID 53932832—
SolventIsopropanolHCID 3776—
Product3,5-Diphenyl-1H-pyridazin-4-oneHCID 619203—

Reaction Steps

The product solution from Example 1 was cooled to 0°C. and mixed with 20 ml. of isopropyl alcohol and 2 ml. of hydrazine. The mixture was stirred for 10 minutes, and was then warmed to room temperature and stirred for 15 hours. The product was then collected by filtration. The yield was 6.0 g. of 3,5-diphenyl-4(1H)-pyridazinone, m.p. 328°-32°C., which was identified by infrared and nuclear magnetic resonance analysis.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03967952
Source datasetuspto-grants-1976_07
ORD IDord-34e2931cac64401982439a3cc562be6e
Source noteuspto-grants-1976_07