HCID 178526319, compound → HCID 178507812, compound

Participants

Reaction Steps

A solution of 6.6 g of 4-nitroso-5-phenyl-3-trifluoromethyl-1H-pyrazole (prepared as in Saloutin et al, J. Flourine Chem, vol 84, pp 107–111) in 200 mL ethanol was treated with 2.0 g 10% palladium/carbon catalyst and hydrogenated at RT and 50 psi for 7.5 hours. The reaction mixture was filtered through celite and washed well with ethanol. The filtrate was concentrated to give the title compound as a yellow solid.

Provenance & Evidence