Dimethylformamide → HCID 66596881, compound

Participants

Reaction Steps

Sodium hydride (60% in oil) (0.87 g) was added at 0° C. to a DMF solution (50 ml) of 5-methoxy-8-phenyl-3,4-dihydro-1H-quinolin-2-one (5.0 g), followed by stirring for 30 minutes. 4-Bromomethylbiphenyl (5.37 g) was added, and the resulting mixture was stirred at room temperature for 1 hour. Water was added to the reaction mixture, and extraction with ethyl acetate was performed. The extract was washed with a saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:n-hexane=1:10→1:5). The purified product was recrystallized from an ethyl acetate-n-hexane-diethyl ether mixed solvent to thereby obtain 6.8 g (yield: 82%) of 1-(biphenyl-4-ylmethyl)-5-methoxy-8-phenyl-3,4-dihydro-1H-quinolin-2-one as a white powder.

Provenance & Evidence