Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1951297Generated: November 1, 2026

4-Aminophenol → 4-(4-(4-Methoxyphenyl)phthalazin-1-ylamino)phenol hydrochloride

https://huagongshe.com/reaction/1951297

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-AminophenolHCID 403—
Reactant(+-)-2-ButanolHCID 6568—
Reactant1-Chloro-4-(4-methoxyphenyl)phthalazineHCID 2772390—
SolventDiethyl EtherHCID 3283—
Product4-(4-(4-Methoxyphenyl)phthalazin-1-ylamino)phenol hydrochlorideHCID 136340037100%

Reaction Conditions

Temperature100 °C

Reaction Steps

4-Aminophenol (340 mg, 3.1 mmol), 1-chloro-4-(4-methoxyphenyl)phthalazine (837 mg, 3.1 mmol), and sec-butanol (12 mL, 3.1 mmol) were combined in a resealable tube and heated to 100° C. overnight. The reaction progress was monitored by LCMS, and upon completion, the orange reaction was cooled diluted with diethyl ether. The resulting precipitate was filtered and washed with diethyl ether, and the solid was dried in vacuo to provide 4-(4-(4-methoxyphenyl)phthalazin-1-ylamino)phenol hydrochloride (1.17 g, 100% yield) as an orange solid. MS: Found M+H+=344.0. Calc'd for C19H21N5O: 343.13.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08404694B2
Source datasetuspto-grants-2013_03
ORD IDord-754ac9ae0c244880aa6dd0d9c51ebb31
Source noteuspto-grants-2013_03