Trifluoroacetic acid → HCID 67037142, compound

Participants

Reaction Steps

3-(3-(3,4-dimethoxy-5-nitrophenyl)-5-hydroxy-4,5-dihydroisoxazol-5-yl)-2-(trifluoromethyl)pyridine 1-oxide (2.14 g, 5 mmol) was heated in 20 mL of ethyl acetate to 70° C. To the resulting slurry was added trifluoroacetic acid (0.74 g, 6.5 mmol) dropwise. After 10 minutes, the reaction was evaporated to dryness and the residue was recrystallised from isopropanol to give 3-(3-(3,4-dimethoxy-5-nitrophenyl)isoxazol-5-yl)-2-(trifluoromethyl)pyridine 1-oxide, 1.27 g (62%).

Provenance & Evidence