Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 597180Generated: November 1, 2026

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

https://huagongshe.com/reaction/597180

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 numberUS04013658
Source datasetuspto-grants-1977_03
ORD IDord-a361d087769a4d7d99e2c6a35a6653cd
Source noteuspto-grants-1977_03