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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1829164Generated: November 1, 2026

Piperazine → HCID 10039873, compound

https://huagongshe.com/reaction/1829164

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
Reactant4-Chloro-2-phenylquinazolineHCID 80977—
SolventDimethylformamideHCID 6228—
ProductHCID 10039873HCID 1003987362.7%

Reaction Steps

Piperazine (3.22 g) was dissolved in DMF (830 mL), and 4-chloro-2-phenylquinazoline (3 g) was added thereto. The mixture was stirred at room temperature for 6 hr. The reaction mixture was concentrated under reduced pressure, water and chloroform were added to the residue and an insoluble material was filtered off. The organic layer of the filtrate was separated and extracted with 1 mol/L hydrochloric acid. The aqueous layer was basified with aqueous sodium hydroxide solution, and the mixture was extracted with chloroform. The extract was concentrated under reduced pressure to give 1-(2-phenyl-4-quinazolinyl)piperazine (2.27 g) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07060722B2
Source datasetuspto-grants-2006_06
ORD IDord-06da0cc83f3141fabfa26c42b10235af
Source noteuspto-grants-2006_06