Dichloromethane → 3-[3-Chloro-4-(1-chloroethyl)phenyl]-5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazole

Participants

Reaction Steps

In a solution of 0.96 g of 3-[3-chloro-4-(1-hydroxyethyl)phenyl]-5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazole in 20 mL of dichloromethane, 0.2 mL of thionyl chloride and a catalytic amount (2 to 3 drops) of N,N-dimethylformamide were added, and stirred at room temperature for 1 hour. After the completion of the reaction, the reaction mixture was poured into 20 mL of ice water, and the organic phase was collected, washed with water (20 mL×1) and then saturated sodium hydrogen carbonate aqueous solution (20 mL×3), and dehydrated with and dried over saturated sodium chloride aqueous solution and anhydrous sodium sulfate in that order, and then the solvent was distilled off under reduced pressure to obtain 0.88 g of the aimed product as yellow oily substance.

Provenance & Evidence