p-Toluenesulfonic acid monohydrate → methyl 4-{[2-(1-[4-hydroxy-1-methyl-5-[4-(trifluoromethyl)phenyl]-1H-pyrazol-3-yl]ethylidene)hydrazino]carbonyl}-2-nitrobenzoate

Participants

Reaction Steps

From 1-[4-hydroxy-1-methyl-5-(4-trifluoromethylphenyl)-1H-pyrazol-3-yl]ethanone (0.70 mmol, 200 mg) synthesized in Synthetic Example 11, methyl 2-nitro-4-hydrazinocarbonylbenzoate (0.70 mmol, 168.3 mg) of Reference Synthetic Example 40 and tosylic acid monohydrate (36.4 mg, 0.21 mmol), 214.7 mg of the desired product was obtained in the same manner as in Synthetic Example 58 as a yellow solid (yield 60%).

Provenance & Evidence