Water → HCID 86723835, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 1-methyl-3-(3-(trifluoromethyl)phenyl)pyrimidin-2,4,6(1H, 3H, 5H)-trione (2.74 g) (prepared in Reference Example 55) in phosphorus oxychloride (22 ml) was added water (0.55 ml) slowly and the resulting mixture was stirred with heating under reflux for one hour. After concentration under reduced pressure, the reaction solutions were cooled to 0° C. and to the residue was added water (50 ml) slowly with stirring. The resulting mixture was extracted with ethyl acetate (50 ml×3), and the resulting extracts were dried and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane/ethyl acetate) to afford 6-chloro-3-methyl-1-(3-(trifluoromethyl)phenyl)pyrimidin-2,4(1H,3H)-dione (1.54 g).

Provenance & Evidence