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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2163696Generated: October 26, 2026

3-(4-Fluorobenzoyl)propionic acid → 3-(3,4-Dichlorophenyl)-2-(2-hydroxyhexyl)-4,5-dihydropyridazin

https://huagongshe.com/reaction/2163696

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-(4-Fluorobenzoyl)propionic acidHCID 101359—
Reactant1-Hydrazinylpropan-2-olHCID 236167—
Reactant4-(3,4-Dichlorophenyl)-4-oxobutyric acidHCID 289763—
Reactant2-HydroxybutylhydrazineHCID 4113127—
Reactant1-Hydrazino-2-hexanolHCID 20384305—
Product3-(3,4-Dichlorophenyl)-2-(2-hydroxyhexyl)-4,5-dihydropyridazinHCID 22751156—
Product3-(p-Fluorophenyl)-2-(2-hydroxyhexyl)-4,5-dihydropyridazinHCID 22751166—

Reaction Steps

When the above procedure is carried out using equivalent amounts of 3-(p-fluorobenzoyl)-propionic acid and 1-hydrazino-2-hexanol,3-(3,4 dichlorobenzoyl)-propionic acid and 1-hydrazino-2-propanol or 3-(3,4-dichlorobenzoyl)-propionic acid and 1-hydrazino-2-hexanol in place of the 3-(p-chlorobenzoyl)-propionic acid and 1-hydrazino-2-butanol used therein, there is obtained 3-(p-fluorophenyl)-2-(2-hydroxyhexyl)-4,5-dihydropyridazin (2H)-3-one(m.p. 75°-77° C.) 3-(3,4-dichlorophenyl)-2-(2-hydroxypropyl)-4,5-dihydropyridazin(2H)-3-one (m.p. 108.5°-100° C.) or 3-(3,4-dichlorophenyl)-2-(2-hydroxyhexyl)-4,5-dihydropyridazin (2H)-3-one(m.p. 80°-81° C.) respectively.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04136184
Source datasetuspto-grants-1979_01
ORD IDord-04b4eb91dca24c39999a3c2880401ab0
Source noteuspto-grants-1979_01