Water → 6-(3,4-dimethoxyphenyl)-2-isopropoxy-3-methyl-4(3H)-pyrimidinone

Participants

Reaction Conditions

Reaction Steps

To a solution of 6-(3,4-dimethoxyphenyl)-3-methyl-2,4(1H,3H)-pyrimidinedione (3.0 g) in N,N-dimethylformamide (30 ml) was added sodium hydride (60% oil suspension, 0.50 g). The mixture was heated at 60° C. with stirring for 20 minutes and cooled to ambient temperature. To the mixture was added isopropyl bromide (15 ml) with stirring, which was continued at ambient temperature for 5 hours, and at 50° C. for 25 hours. To the reaction mixture was added water, and extracted with ethyl acetate. The organic extract was washed with water, dried over magnesium sulfate and evaporated under reduced pressure. The residue was triturated in diisopropyl ether to give 6-(3,4-dimethoxyphenyl)-2-isopropoxy-3-methyl-4-(3H)-pyrimidinone (2.73 g).

Provenance & Evidence