HCID 14590595, compound → HCID 14590611, compound

Participants

Reaction Steps

Ethyl 1-methyl-3-(2-nitro-4-trifluoromethylanilino)pyrazole-4-carboxylate (9.2 g) was hydrogenated at 60 p.s.i. in a mixture of ethyl acetate (200 ml) and ethanol (50 ml) over 10% palladium on charcoal (1.0 g). The catalyst was removed by filtration, the solvent evaporated and the residue crystallised from carbon tetrachloride to give the title compound m.p. 162° C.

Provenance & Evidence