Nitric Acid → HCID 14421353, compound

Participants

Reaction Steps

2 ml (0.021 mol) of acetic anhydride and 0.9 ml (0.02 mol) of 98% strength nitric acid are successively added to 6 g (0.019 mol) of 5-acetamido-1-(2-chloro-6-fluoro-4-trifluoromethylphenyl)-pyrazole in 15 ml of glacial acetic acid at room temperature, and the mixture is stirred at room temperature for 15 hours. For working-up, the reaction mixture is added dropwise to 200 ml of ice-water, and the precipitate formed is filtered off, washed with water and dried in vacuo at 50° C. 5.8 g (85% of theory) of 5-acetamido-4-nitro-1-(2-chloro-6-fluoro-4-trifluoromethylphenyl)-pyrazole of melting point 129°-130° C. are obtained.

Provenance & Evidence