Sodium carbonate bicarbonate → 3-(7-Methoxy-4-methyl-2-oxoquinolin-1(2H)-yl)propanal

Participants

Reaction Steps

To a solution of 1-[2-(1,3-dioxolan-2-yl)ethyl]-7-methoxy-4-methylquinolin-2(1H)one (30 ml) was added 4N hydrochloric acid (30 ml) and the mixture was stirred at room temperature for 2 hours. An aqueous solution of sodium carbonate/hydrogen carbonate was added to the reaction solution and the mixture was extracted with ethyl acetate. The obtained organic layer was washed with water and saturated sodium chloride solution and dried over anhydrous sodium sulfate. The solvent was removed under reduced pressure and the obtained crude product was purified by thin layer chromatography (hexane/ethyl acetate) to yield 630 mg (74%) of the title compound.

Provenance & Evidence