Dimethylformamide → 4-{[(2-{1-[5-(4-tert-butylphenyl)-1-ethyl-4-hydroxy-1H-pyrazol-3-yl]ethylidene}hydrazino)-carbonothioyl]amino}benzoic acid

HRID 2103825Notes

Reaction equation

HRID 2103825 reaction equation
[C:1]([C:5]1[CH:10]=[CH:9][C:8]([C:11]2[N:15]([CH2:16][CH3:17])[N:14]=[C:13]([C:18](=O)[CH3:19])[C:12]=2[OH:21])=[CH:7][CH:6]=1)([CH3:4])([CH3:3])[CH3:2].[NH:22]([C:24]([NH:26][C:27]1[CH:35]=[CH:34][C:30]([C:31]([OH:33])=[O:32])=[CH:29][CH:28]=1)=[S:25])[NH2:23].CN(C)C=O>Cl.O>[C:1]([C:5]1[CH:10]=[CH:9][C:8]([C:11]2[N:15]([CH2:16][CH3:17])[N:14]=[C:13]([C:18](=[N:23][NH:22][C:24]([NH:26][C:27]3[CH:35]=[CH:34][C:30]([C:31]([OH:33])=[O:32])=[CH:29][CH:28]=3)=[S:25])[CH3:19])[C:12]=2[OH:21])=[CH:7][CH:6]=1)([CH3:3])([CH3:2])[CH3:4]

Participants

6

Reactant 3

HCID 6228DimethylformamideHCID 27573784-(4-Carboxyphenyl)-3-thiosemicarbazideHCID 670501791-[5-(4-tert-butylphenyl)-1-ethyl-4-hydroxy-1H-pyrazol-3-yl]ethanone

Product 1

HCID 723601204-{[(2-{1-[5-(4-tert-butylphenyl)-1-ethyl-4-hydroxy-1H-pyrazol-3-yl]ethylidene}hydrazino)-carbonothioyl]amino}benzoic acidYield 72%

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidCatalystHCID 962WaterSolvent

Procedure

1-[5-(4-tert-Butylphenyl)-1-ethyl-4-hydroxy-1H-pyrazol-3-yl]ethanone (0.1718 mmol, 49.2 mg) and 4-hydrazinocarbonothioylaminobenzoic acid (0.1718 mmol, 36.3 mg) were stirred with dimethylformamide (3 mL) and two drops of concentrated hydrochloric acid at room temperature for 21 hours. After addition of water, the precipitated yellow solid was recovered by filtration, washed with water and dried by means of a vacuum pump. The resulting solid was stirred with chloroform/n-hexane for a while, then recovered by filtration and dried by means of a vacuum pump to give the desired product as a yellow solid (59 mg, yield 72%).

Workup

  1. filtrationthe precipitated yellow solid was recovered by filtration
  2. washwashed with water
  3. customdried by means of a vacuum pump
  4. filtrationrecovered by filtration
  5. customdried by means of a vacuum pump

Sources & evidence

ORD record
ord-a4caf9d59e2a490d8892d4755373818e
Source dataset
uspto-grants-2009_08
Patent number
US07576115B2

Reaction notes

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