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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 228692Generated: October 27, 2026

2-Methylpyridine → 1-[2-(6,7-Dimethoxy-quinolin-4-yloxy)-5-methoxyphenyl]-2-pyridin-2-yl-ethanol

https://huagongshe.com/reaction/228692

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-MethylpyridineHCID 7975—
ReactantAmmonium ChlorideHCID 25517—
Reactant2-[(6,7-Dimethoxy-4-quinolyl)oxy]-5-methoxybenzaldehydeHCID 23078279—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
Product1-[2-(6,7-Dimethoxy-quinolin-4-yloxy)-5-methoxyphenyl]-2-pyridin-2-yl-ethanolHCID 5775656729%

Reaction Conditions

Temperature-78 °C

Reaction Steps

2-Picoline (40 μl) was dissolved in tetrahydrofuran (2 ml), and the solution was cooled to −78° C. under an argon atmosphere. n-Butyllithium (1.56 M hexane solution) (260 μl) was added to the cooled solution, and the mixture was stirred for 2 hr. A solution of 2-(6,7-dimethoxy-quinolin-4-yloxy)-5-methoxy-benzaldehyde (100 mg) in tetrahydrofuran (2 ml) was then added to the reaction solution, and the mixture was stirred at −78° C. for one hr. A saturated ammonium chloride solution was added to the reaction solution, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was then washed with water and was dried over anhydrous sodium sulfate. The solvent was removed by distillation under the reduced pressure, and the residue was purified by column chromatography using acetone-hexane to give the title compound (37 mg, yield 29%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07560558B2
Source datasetuspto-grants-2009_07
ORD IDord-fc1a29d379b0497d8389e76f45bcde67
Source noteuspto-grants-2009_07