Sodium Hydroxide → HCID 86052868, compound

Participants

Reaction Conditions

Reaction Steps

Methoxylamine hydrochloride (3.37 g, 40.3 mmol) was added to a stirred solution of 4-(2-propyl-1H-imidazo[4,5-c]quinolin-1-yl)butyraldehyde (10.0 g, 35.5 mmol) in ethanol (100 mL) cooled to 0° C., followed by addition of 50% sodium hydroxide solution (12.5 M, 3.2 mL, 40 mmol) in water (7 mL). The reaction mixture was allowed to warm to ambient temperature and stirred for 3 days. The reaction mixture was then concentrated under reduce pressure and diluted with dichloromethane (150 mL) and water (50 mL). The layers were separated and the aqueous layer was extracted with dichloromethane (50 mL). The combined organics were dried over potassium carbonate, filtered and concentrated to afford 11.6 g of 4-(2-propyl-1H-imidazo[4,5-c]quinolin-1-yl)-butyraldehyde O-methyloxime as a reddish oil.

Provenance & Evidence