反应详情

温度

85 °C

In a solution of 1.07 g of 4-[5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-2-methoxy benzoic acid ethyl ester in 30 ml of ethanol, a solution of 1.0 g of sodium hydroxide in 30 ml of water was added, stirred at 85° C. for 1 hour. After the completion of the reaction, the solvent was distilled off under reduced pressure. The residue was adjusted to pH 2 to 3 with concentrated hydrochloric acid, and extracted with ethyl acetate (30 ml×2). The organic phase was dehydrated with saturated sodium chloride aqueous solution and dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure to obtain 1.0 g of the aimed product as pale yellow resinous substance.

1. customAfter the completion of the reaction
2. distillationthe solvent was distilled off under reduced pressure
3. extractionextracted with ethyl acetate (30 ml×2)
4. dry with materialdried over anhydrous magnesium sulfate
5. distillationthe solvent was distilled off under reduced pressure