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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 591633Generated: October 30, 2026

Sodium Hydroxide → 2-(4-(piperazin-1-yl)phenyl)quinazolin-4(3H)-one

https://huagongshe.com/reaction/591633

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant2-(4-(4-acetylpiperazin-1-yl)phenyl)quinazolin-4(3H)-oneHCID 136348001—
SolventHydrochloric AcidHCID 313—
Product2-(4-(piperazin-1-yl)phenyl)quinazolin-4(3H)-oneHCID 13634800590.4%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 2-(4-(4-acetylpiperazin-1-yl)phenyl)quinazolin-4(3H)-one (2.27 g, 6.5 mmol) and 2 N HCl (100 mL) were heated at 100° C. for 4 hours. Then, the mixture was cooled to room temperature, basified to pH 8 with 2 N NaOH, extracted with CH2Cl2 (3×150 mL), dried over anhydrous MgSO4, filtered, and concentrated to afford 2-(4-(piperazin-1-yl)phenyl)quinazolin-4(3H)-one as a pale yellow solid (1.8 g, 90%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09238640B2
Source datasetuspto-grants-2016_01
ORD IDord-580366da60d04a9ebac6daef47cbad71
Source noteuspto-grants-2016_01