1,1,1-Triethoxybutane → 1-{2-[2-(methylsulfonyl)ethoxy]ethyl}-2-propyl-1H-imidazo[4,5-c]quinoline

Participants

Reaction Steps

Triethyl orthobutyrate (2.2 mL, 14 mmol) was added to a stirred solution of N4-{2-[2-(methylsulfonyl)ethoxy]ethyl}quinoline-3,4-diamine (3.6 g, 12 mmol) in acetonitrile (60 mL). Pyridine hydrochloride (0.3 g) was added and the reaction mixture was heated to reflux with the volatiles being collected in a Dean Stark trap. After 40 minutes analysis by TLC indicated that the starting material was consumed. The reaction mixture was concentrated under reduced pressure to provide 3.7 g of 1-{2-[2-(methylsulfonyl)ethoxy]ethyl}-2-propyl-1H-imidazo[4,5-c]quinoline as a white solid.

Provenance & Evidence