Triethylamine → 3-[4-chloro-2-(2-naphthoylamino)phenyl]-1-methyl-6-trifluoromethyl-2,4(1H, 3H)-pyrimidinedione

Participants

Reaction Steps

A solution of 3-(2-amino-4-chlorophenyl)-1-methyl-6-trifluoromethyl-2,4(1H, 3H)-pyrimidinedione (0.4 g), 2-naphthoyl chloride (0.29 g) and triethyl amine (0.19 g) in anhydrous tetrahydro furan (30 ml) was heated at reflux temperature overnight under nitrogen atmosphere. The reaction mixture was diluted with ethyl acetate (200 ml), washed with brine (×2) and dried over anhydrous sodium sulfate. The solvent was removed unded reduced pressure and the residue was purified by column chromatography on silica gel using ethyl acetate and hexane (1:3) as the eluent give a pale yellow solid. The solid was recrystallized from ethyl acetate-hexane to give the title compound as a white crystal (0.42 g).

Provenance & Evidence