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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 27476Generated: October 25, 2026

Hydrogen Bromide → HCID 178419247, compound

https://huagongshe.com/reaction/27476

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantCysteamine HydrochlorideHCID 9082—
Reactant4-Methylimidazol-5-ylmethanolhydrochlorideHCID 3084707—
SolventAcetic AcidHCID 176—
ProductHCID 178419247HCID 178419247—

Reaction Steps

A mixture of 4-hydroxymethyl-5-methylimidazole hydrochloride (15.0 g.), cysteamine hydrochloride (11.5 g.) and a solution of hydrogen bromide in acetic acid (48%, 225 ml.) was heated under reflux for 7 hours. Cooling afforded 4-methyl-5-[(2-aminoethyl)thiomethyl]imidazole dihydrobromide (21.6 g.), m.p. 208°-211°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04221802
Source datasetuspto-grants-1980_09
ORD IDord-2a452a56a7ab4ac4b8d9474109575249
Source noteuspto-grants-1980_09