Water → 3-[3-(2-Bromo-2-ethylthioethoxycarbonylethenyl)-4-chlorophenyl]-2,4-dioxo-1-methyl-6-trifluoromethyl-1,2,3,4-tetrahydropyrimidine

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Reaction Steps

2.36 g of 3-[3-(2-bromo-2-chlorocarbonylethenyl)-4-chlorophenyl]-2,4-dioxo-1-methyl-6-trifluoromethyl-1,2,3,4-tetrahydropyrimidine in 20 ml of tetrahydrofuran were added dropwise to a solution of 0.58 g of 2-ethylmercaptoethanol and 0.56 g of triethylamine in 30 ml of tetrahydrofuran, and stirring was carried out for 5 hours. 100 ml of water were added and the aqueous phase was extracted with twice 100 ml of dichloromethane. The combined organic phases were washed three times with water, dried with sodium sulfate and evaporated down. The solid residue was stirred with diisopropyl ether, removed, washed with diisopropyl ether and petroleum ether and dried.

Provenance & Evidence