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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 648492Generated: October 30, 2026

Hydrogen Bromide → HCID 20025751, compound

https://huagongshe.com/reaction/648492

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantHCID 13732376HCID 13732376—
ProductHCID 20025751HCID 2002575189%

Reaction Steps

A mixture of 7 parts of 1-[4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl]-3-propyl-2-imidazolidinone and 225 parts of a hydrobromic acid solution 48% was stirred and refluxed for 5 hours. After cooling, the precipitated product was filtered off, washed with 2-propanol and dissolved in a mixture of methanol and water. The solution was neutralized with a sodium hydrogen carbonate solution. The product was extracted with trichloromethane. The extract was dried, filtered and evaporated. The residue was triturated in dichloromethane. The product was filtered off and dried, yielding 6 parts (89%) of 1-[4-[4-(4-hydroxyphenyl)-1-piperazinyl]phenyl]-3-propyl-2-imidazolidinone (46).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04735942
Source datasetuspto-grants-1988_04
ORD IDord-86098c948c3140928944758bcba98337
Source noteuspto-grants-1988_04