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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1840284Generated: November 1, 2026

Hydrogen Bromide → 1-(5-Chloro-2-hydroxyphenyl)piperazine dihydrobromide

https://huagongshe.com/reaction/1840284

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantHCID 2735754HCID 2735754—
Product1-(5-Chloro-2-hydroxyphenyl)piperazine dihydrobromideHCID 23447908—

Reaction Steps

A suspension of 5.5 g of 1-(5-chloro-2-methoxyphenyl)piperazine in 40 mL of 62% hydrobromic acid was stirred at reflux for 30 hours. After cooling to room temperature, the mixture was filtered by suction and the solid was washed on the funnel with acetone affording 6.02 g of the title compound. M.p. >270° C. (ethanol).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06680319B2
Source datasetuspto-grants-2004_01
ORD IDord-7fe13fab2df94984b9a2a5dea6bc4f53
Source noteuspto-grants-2004_01