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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 703090Generated: October 30, 2026

Hydrochloric Acid → HCID 178418633, compound

https://huagongshe.com/reaction/703090

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 178418660HCID 178418660—
SolventMethanolHCID 887—
ProductHCID 178418633HCID 178418633—

Reaction Steps

To a solution of methyl (E)-3-[2-(4-imidazolylmethylamino)phenyl]propenoate (0.7 g) in methanol (7 ml) was added 1N sodium hydroxide aqueous solution (3 ml) and the mixture was stirred for 20 hours. After removal of methanol from the reaction mixture, water was added to the residue. The mixture was adjusted to pH 6 with acetic acid. The mixture was salted out and extracted with ethyl acetate 8 times. The extracts were combined and dried over magenessium sulfate. Removal of the solvent afforded an orange oil, which was dissolved in methanol (5 ml). To the solution was added an ethereal solution of hydrogen chloride. The resultant precipitate was collected by filtration, washed with ether twice and dried to give (E)-3-[2-(4-imidazolylmethylamino)phenyl]propenoic acid dihydrochloride (0.29 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04981847
Source datasetuspto-grants-1991_01
ORD IDord-f24e7ebf9cfa478d8e5d9af1a32053b6
Source noteuspto-grants-1991_01