反应详情

温度

75 °C

In a solution of 0.60 g of 4-[5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazole-3-yl]-2-nitro benzoic acid ethyl ester synthesized in Steps 1 to 3 of Synthetic Example 5 in 6 ml of ethyl acetate, 2.0 ml of water, 0.6 ml of acetic acid and 0.46 g of reduced iron were added, and stirred at 75° C. for 2 hours. After the completion of the reaction, the organic phase was collected, and the aqueous phase was extracted with ethyl acetate (10 ml×2). The organic phases together were washed with water, dehydrated with saturated sodium chloride aqueous solution and dried over anhydrous sodium sulfate, and then the solvent was distilled off under reduced pressure to obtain 0.60 g of crude aimed product as brown oily substance. The resulting product was used as such without purification for the next step.

1. customAfter the completion of the reaction
2. customthe organic phase was collected
3. extractionthe aqueous phase was extracted with ethyl acetate (10 ml×2)
4. washThe organic phases together were washed with water
5. dry with materialdried over anhydrous sodium sulfate
6. distillationthe solvent was distilled off under reduced pressure