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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 228548Generated: October 26, 2026

Xanthoxylin → 1-{4,6-Dimethoxy-2-[(6,7-dimethoxy-4-quinolyl)oxy]-phenyl}-1-ethanone

https://huagongshe.com/reaction/228548

Reaction equation

Participants

RoleNameHCIDCharge
ReactantXanthoxylinHCID 66654—
Reactant4-Chloro-6,7-dimethoxyquinolineHCID 459610—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
Solvent1,2-DichlorobenzeneHCID 7239—
Product1-{4,6-Dimethoxy-2-[(6,7-dimethoxy-4-quinolyl)oxy]-phenyl}-1-ethanoneHCID 5775636527%

Reaction Conditions

Temperature120 °C

Reaction Steps

4-Chloro-6,7-dimethoxyquinoline (56 mg), 2-hydroxy-4,6-dimethoxyacetophenone (196 mg), and 4-dimethylaminopyridine (122 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. The residue was purified by column chromatography using acetone-hexane to give the title compound (25 mg, yield 27%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07560558B2
Source datasetuspto-grants-2009_07
ORD IDord-2698dd9263034d84b4c14d37e94e58bd
Source noteuspto-grants-2009_07