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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 503528Generated: October 30, 2026

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

https://huagongshe.com/reaction/503528

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 [M+H]=344.0. Calc'd for C19H21N5O: 343.13.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07776857B2
Source datasetuspto-grants-2010_08
ORD IDord-cb85eb13a3ee49cfaa0b3d81aa17c7b7
Source noteuspto-grants-2010_08