反应详情

First, 1.0 g of 1-[4-chloro-6-fluoro-3-hydroxy-2-(2-methyl-2-propenyl)phenyl]-3-methyl-4-trifluoromethyl-1,2,3,6-tetrahydropyrimidine-2,6-dione was dissolved in 15 ml of N,N-dimethylformamide, to which 0.43 g of potassium carbonate and 0.4 ml of methyl bromoacetate were added, and the mixture was stirred at room temperature for 30 minutes. After completion of the reaction, the reaction mixture was poured into water and extracted with diethyl ether. The organic layer was dried and concentrated. The residue was subjected to silica gel chromatography, which afforded 1.0 g of 1-[4-chloro-6-fluoro-3-methoxycarbonylmethyloxy-2-(2-methyl-2-propenyl)phenyl]-3-methyl-4-trifluoromethyl-1,2,3,6-tetrahydropyrimidine-2,6-dione.

1. additionwere added
2. customAfter completion of the reaction
3. extractionextracted with diethyl ether
4. customThe organic layer was dried
5. concentrationconcentrated