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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 847925Generated: October 26, 2026

Hydrogen Bromide → HCID 178419246, compound

https://huagongshe.com/reaction/847925

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
Reactant(3-Mercaptopropyl)ammonium chlorideHCID 197870—
Reactant4-Methylimidazol-5-ylmethanolhydrochlorideHCID 3084707—
ProductHCID 178419246HCID 178419246—

Reaction Steps

A solution of homocysteamine hydrochloride (22.0 g.) and 4-hydroxymethyl-5-methylimidazole hydrochloride (25.6 g.) in aqueous hydrobromic acid (500 ml.) was heated under reflux for one hour. Concentration under reduced pressure, followed by recrystallisation from methanol-isopropyl alcohol afforded 4-methyl-5-[(3-aminopropyl)thiomethyl]-imidazole dihydrobromide (24.5 g.), m.p. 200.5°-202.5°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04293699
Source datasetuspto-grants-1981_10
ORD IDord-5c03afb5b75a493baa34d35232237405
Source noteuspto-grants-1981_10