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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1447727Generated: October 25, 2026

Butylhydrazine → 6-phenyl-2-(2-hydroxyhexyl)-4-hydroxy-4,5-dihydropyridazine-3(2H)-one

https://huagongshe.com/reaction/1447727

Reaction equation

Participants

RoleNameHCIDCharge
ReactantButylhydrazineHCID 77064—
Reactant1-Hydrazinylpropan-2-olHCID 236167—
Reactant2-Hydroxy-4-oxo-4-phenylbutanoic acidHCID 516699—
Reactant2-HydroxybutylhydrazineHCID 4113127—
Reactant1-Hydrazino-2-hexanolHCID 20384305—
Reactant3-Benzoyl-2-hydroxy-3-methyl-propionic acidHCID 23243793—
Product6-phenyl-2-(2-hydroxyhexyl)-4-hydroxy-4,5-dihydropyridazine-3(2H)-oneHCID 20384303—

Reaction Steps

When the above procedure is carried out using equivalent amounts of 3-benzoyl-2-hydroxy-propionic acid and 1-hydrazino-2-hexanol or 3-benzoyl-2-hydroxy-propionic acid and 1-hydrazino-2-propanol or 3-benzoyl-2-hydroxy-3-methyl-propionic acid and butyl hydrazine in place of the 3-benzoyl-2-hydroxy-propionic acid and 1-hydrazino-2-butanol used therein, there is obtained 6-phenyl-2-(2-hydroxyhexyl)-4-hydroxy-4,5-dihydropyridazine-3(2H)-one; 6-phenyl-2-(2-hydroxypropyl)-4-hydroxy-4,5-dihydropyridazin-3(2H)-one; or 2-butyl-4,5-dihydro-4-hydroxy-5-methyl-6-phenylpyridazin-3(2H)-one (m.p. 129°-155° C.), respectively.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04177273
Source datasetuspto-grants-1979_12
ORD IDord-234728425da640fab80f509e2282d68d
Source noteuspto-grants-1979_12