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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1042793Generated: November 1, 2026

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

https://huagongshe.com/reaction/1042793

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 numberUS08557816B2
Source datasetuspto-grants-2013_10
ORD IDord-b081803c459848febde67b5f8b3f667b
Source noteuspto-grants-2013_10