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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1887720Generated: November 1, 2026

Hydrochloric Acid → Ethanol hydrochloride

https://huagongshe.com/reaction/1887720

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 59620398HCID 59620398—
SolventEthanolHCID 702—
ProductEthanol hydrochlorideHCID 21887872—
Product3-amino-6-bromo-8-nitro-3,4-dihydroquinolin-2(1H)-one hydrochlorideHCID 68411311—

Reaction Steps

Aqueous hydrochloric acid-ethanol solution was prepared (from commercial aqueous concentrated hydrochloric acid (3 L) and ethanol (6 L)), and N-(6-bromo-8-nitro-2-oxo-1,2,3,4-tetrahydroquinolin-3-yl)acetamide (known compound: Chem. Abst., 4150 (1947)) (604 g) was added to the solution, followed by heating for 14 hours under stirring and reflux. The reaction mixture was cooled on an ice bath, and the precipitates were recovered through filtration. The thus-obtained solid was washed with ethanol and dried, whereby the title compound (571 g) was yielded as a powdery compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08501772B2
Source datasetuspto-grants-2013_08
ORD IDord-4ecb72a5c49a487caa5283987fb51d63
Source noteuspto-grants-2013_08