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

HRID 1881630Notes

Reaction equation

HRID 1881630 reaction equation
[OH:1][C:2]1[C:3]([C:18](=O)[CH3:19])=[N:4][N:5]([CH3:17])[C:6]=1[C:7]1[CH:12]=[CH:11][C:10]([C:13]([F:16])([F:15])[F:14])=[CH:9][CH:8]=1.[N+:21]([C:24]1[CH:33]=[C:32]([C:34]([NH:36][NH2:37])=[O:35])[CH:31]=[CH:30][C:25]=1[C:26]([O:28][CH3:29])=[O:27])([O-:23])=[O:22].O.S(C1C=CC(C)=CC=1)(O)(=O)=O>>[OH:1][C:2]1[C:3]([C:18](=[N:37][NH:36][C:34]([C:32]2[CH:31]=[CH:30][C:25]([C:26]([O:28][CH3:29])=[O:27])=[C:24]([N+:21]([O-:23])=[O:22])[CH:33]=2)=[O:35])[CH3:19])=[N:4][N:5]([CH3:17])[C:6]=1[C:7]1[CH:12]=[CH:11][C:10]([C:13]([F:14])([F:16])[F:15])=[CH:9][CH:8]=1

Participants

4

Reactant 3

HCID 521998p-Toluenesulfonic acid monohydrateHCID 602067901-[4-hydroxy-1-methyl-5-(4-trifluoromethylphenyl)-1H-pyrazol-3-yl]ethanoneHCID 669863564-Methoxycarbonyl-3-nitrobenzhydrazide

Product 1

HCID 72359982methyl 4-{[2-(1-[4-hydroxy-1-methyl-5-[4-(trifluoromethyl)phenyl]-1H-pyrazol-3-yl]ethylidene)hydrazino]carbonyl}-2-nitrobenzoateYield 60.7%

Procedure

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%).

Sources & evidence

ORD record
ord-ca913f4116834a08848a3c2c8995e252
Source dataset
uspto-grants-2012_11
Patent number
US08318796B2

Reaction notes

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