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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 228876Generated: October 26, 2026

Water → 6,7-Dimethoxy-4-(7-methyl-isoquinolin-6-yloxy)-quinoline

https://huagongshe.com/reaction/228876

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant4-Chloro-6,7-dimethoxyquinolineHCID 459610—
Reactant7-Methylisoquinolin-6-olHCID 135742166—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
Solvent1,2-DichlorobenzeneHCID 7239—
Product6,7-Dimethoxy-4-(7-methyl-isoquinolin-6-yloxy)-quinolineHCID 2307835258%

Reaction Conditions

Temperature140 °C

Reaction Steps

6-Hydroxy-7-methylisoquinoline (21 mg), 4-chloro-6,7-dimethoxyquinoline (81 mg), and 4-dimethylaminopyridine (44 mg) were suspended in o-dichlorobenzene (2.5 ml), and the suspension was stirred at 140° C. for 6 hr. The reaction solution was cooled to room temperature, water was then added to reaction solution, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was then washed with water and saturated brine and was dried over anhydrous sodium sulfate. The solvent was removed by distillation under the reduced pressure, and the residue was purified by thin layer chromatography using acetone-chloroform to give the title compound (24 mg, yield 58%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07560558B2
Source datasetuspto-grants-2009_07
ORD IDord-c7525201eaec41c78fed1eafd5e7498f
Source noteuspto-grants-2009_07