Guanidine Hydrochloride → HCID 178496922, compound

Participants

Reaction Conditions

Reaction Steps

Guanidine hydrochloride (12.1 g), 4-Fluorobenzaldehyde (7.0 g), methyl 4-methyl-3-oxo-pentanoate (8.9 g) and DMF (150 ml) were charged to a vessel equipped with a condenser and connected to a nitrogen line. The resultant mixture was stirred until a clear solution was obtained. Potassium carbonate (17.5 g) is charged and the mixture heated to 70° C. for 3 hours. The reaction mixture was cooled to ambient temperature and filtered. It contained methyl 2-amino-4-(4-fluorophenyl)-6-isopropyl-1,6-dihydropyrimidine-5-carboxylate in 55% yield. An analytical sample was prepared by removing the reaction solvents by evaporation under reduced pressure, precipitating the product from the resultant oil in acetonitrlie and recrystallisation from acetonitrile.

Provenance & Evidence