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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1008346Generated: October 31, 2026

Ethanamine, 2-fluoro-, hydrochloride → HCID 15515590, compound

https://huagongshe.com/reaction/1008346

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanamine, 2-fluoro-, hydrochlorideHCID 9995—
ReactantTriphosgeneHCID 94429—
ReactantSodium BicarbonateHCID 516892—
Reactant4-[(6,7-Dimethoxy-4-quinolyl)oxy]-2-fluoroanilineHCID 11301470—
SolventTolueneHCID 1140—
SolventDichloromethaneHCID 6344—
SolventTriethylamineHCID 8471—
ProductHCID 15515590HCID 15515590145.6%

Reaction Steps

4-[(6,7-Dimethoxy-4-quinolyl)oxy]-2-fluoroaniline (100 mg) was dissolved in toluene (10 ml) and triethylamine (0.5 ml) with heating. A solution of triphosgene (47 mg) in dichloromethane (1.0 ml) was then added to the solution, and the mixture was heated under reflux for 5 min. Next, 2-fluoroethylamine hydrochloride (42 mg) was added thereto, and the mixture was heated under reflux for additional 8 hr. A saturated aqueous sodium hydrogencarbonate solution was added to the reaction solution, followed by extraction with ethyl acetate. The ethyl acetate layer was dried over anhydrous sodium sulfate. The solvent was removed by distillation under the reduced pressure. The residue was purified by chromatography on silica gel by development with chloroform/acetone (2/1) to give 93 mg (yield 72%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06797823B1
Source datasetuspto-grants-2004_09
ORD IDord-fe6648d877f945a386f72907a950798c
Source noteuspto-grants-2004_09