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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 228622Generated: October 27, 2026

4-Chloro-6,7-dimethoxyquinoline → Ethyl 2-[(6,7-dimethoxy-4-quinolyl)oxy]-5-(pyrrol-1-yl)benzoate

https://huagongshe.com/reaction/228622

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Chloro-6,7-dimethoxyquinolineHCID 459610—
ReactantEthyl 5-(pyrrol-1-yl)salicylateHCID 23078344—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
Solvent1,2-DichlorobenzeneHCID 7239—
ProductEthyl 2-[(6,7-dimethoxy-4-quinolyl)oxy]-5-(pyrrol-1-yl)benzoateHCID 5775640622.1%

Reaction Conditions

Temperature120 °C

Reaction Steps

Ethyl 5-(pyrrol-1-yl)salicylate (170 mg), 4-chloro-6,7-dimethoxyquinoline (87 mg), and 4-dimethylaminopyridine (143 mg) were suspended in o-dichlorobenzene (1 ml), and the suspension was stirred at 120° C. overnight. The reaction solution was cooled to room temperature, and the solvent was removed by distillation under the reduced pressure. Water was then added to the residue, and the mixture was extracted with chloroform. The chloroform layer was washed with water and was dried over anhydrous sodium sulfate. The solvent was removed therefrom by distillation under the reduced pressure, and the residue was purified by column chromatography using acetone-hexane to give the title compound (36 mg, yield 15%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07560558B2
Source datasetuspto-grants-2009_07
ORD IDord-8525bcda652946ab90848e80930cac56
Source noteuspto-grants-2009_07