Water → HCID 12151212, compound

Participants

Reaction Conditions

Reaction Steps

4-Chloro-5-iodo-2-isopropylthio-6-trifluoromethylpyrimidine (0.30 g) was dissolved in dimethylsulfoxide (3.0 ml) and ethyl 3-trifluoromethyl-1H-pyrazole-4-carboxylate (0.16 g) and 1,8-diazabicyclo-[5,4,0]-under-7-ene (0.12 g) was added at room temperature with stirring. The mixture was heated to 80° C. and stirred for 2 hr. After cooling to room temperature, the mixture was added water and extracted with benzene. The benzene layer was washed with water and brine, respectively and dried over magnesium sulfate. The solvent was removed under reduced pressure. The residue was purified by silica gel column chromatography (hexane-ethyl acetate) to give ethyl 1-(5-iodo-2-isopropylthio-6-trifluoromethylpyrimidin-4-yl)-3-trifluoromethyl-1H-pyrazole-4-carboxylate (0.30 g) as colorless crystalline solid, mp 107-108° C.

Provenance & Evidence