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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 593937Generated: October 30, 2026

Acetic Acid → 4-((4-Phenylphthalazin-1-yl)methyl)phenol

https://huagongshe.com/reaction/593937

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantHydrogen BromideHCID 260—
Reactant1-(4-Methoxybenzyl)-4-phenylphthalazineHCID 66731672—
SolventWaterHCID 962—
SolventSodium HydroxideHCID 14798—
Product4-((4-Phenylphthalazin-1-yl)methyl)phenolHCID 57756258—

Reaction Steps

To 1-(4-methoxybenzyl)-4-phenylphthalazine (0.240 g, 0.735 mmol) was added acetic acid (1.5 mL) followed by hydrobromic acid 48% (1.50 ml, 27.6 mmol). A water condenser was attached and the mixture was heated to reflux for 3 hours. The reaction was diluted with water and neutralized with 6 N NaOH until pH˜6. Filtered the resulting solid, washed with water and dried to yield 4-((4-phenylphthalazin-1-yl)methyl)phenol as an off-white solid. MS m/z=313 [M+1]+. Calc'd for C21H16N2O: 312.37.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09242961B2
Source datasetuspto-grants-2016_01
ORD IDord-fa281586bfe74b9183e080cc44a08c25
Source noteuspto-grants-2016_01