Acetyl chloride → 3-(4-Methoxyphenyl)-5,6-dihydro-6-acetylimidazo[1,5-c]-quinazoline

Participants

Reaction Steps

To a mixture of 3-(4-methoxyphenyl)-5,6-dihydroimidazo[1,5-c]quinazoline (100 mg) and diisopropylethylamine (50 ml) in THF (20 ml) is added acetyl chloride (50 ml) and the mixture stirred at RT for 5 hours. The reaction is extracted with ethyl acetate (200 ml), the solvent evaporated, and the residue is purified by preparative-plate chromatography (75% ethyl acetate/hexane) to afford 3-(4-methoxyphenyl)-5,6-dihydro-6-acetylimidazo[1,5-c]-quinazoline (Compound 49) as a light yellow solid. m.p. 80°-82° C.

Provenance & Evidence