Dimethylformamide → HCID 67164677, compound

Participants

Reaction Steps

In a solution of 0.80 g of 4-[5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazole-3-yl]-2-methoxymethyl benzoic acid in 30 mL of dichloromethane, 0.23 g of oxalyl chloride and 0.06 g of N,N-dimethylforamide were added, and stirred at room temperature for 30 minutes. After the completion of the reaction, the solvent was distilled off under reduced pressure, the resudue was dissolved in 5 mL of tetrahydrofuran, and a solution of 1.50 g of concentrated ammonia water in 10 mL of tetrahydrofuran was added dropwise at room temperature with stirring. After the completion of the addition dropwise, it was continued to stir further for 1 hour. After the completion of the reaction, the solvent was distilled off under reduced pressure, 10 mL of water was added in the residue, and extracted with ethyl acetate (20 mL×1). The organic phase was washed with 10 mL of 2N hydrochloric acid, and then dehydrated with and dried over saturated sodium chloride aqueous solution and then anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified with silica gel column chromatography that were eluated with ethyl acetate-hexane (1:1) to obtain 0.34 g of the aimed product as white crystal.

Provenance & Evidence