Triethylamine → 3,5-dichloro-4-(3-(N-(4-trifluoromethoxyphenyl)carbamoyl)propyloxy)-1-(3,3-dichloro-2-propenyloxy)benzene

Participants

Reaction Steps

To a solution of 0.26 g of 4-(2,6-dichloro-4-(3,3-dichloro-2-propenyloxy)-phenoxy)butyric acid and 0.07 g of triethylamine dissolved in 5 ml of dichloromethane was added dropwise 0.14 g of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (WSC) hydrochloride, while stirring under ice cooling. After stirring for 30 minutes, a solution of 0.12 g of 4-trifluoromethoxyaniline dissolved in 5 ml of dichloromethane was added dropwise. After stirring at room temperature for 12 hours, the reaction mixture was concentrated to give a residue. The residue was subjected to silica gel chromatography, which afforded 0.26 g of 3,5-dichloro-4-(3-(N-(4-trifluoromethoxyphenyl)carbamoyl)-propyloxy)-1-(3,3-dichloro-2-propenyloxy)benzene (70% yield), m.p., 88.8° C.

Provenance & Evidence