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

HRID 1881564Notes

Reaction equation

HRID 1881564 reaction equation
[CH2:1]([C:6]1[CH:11]=[CH:10][C:9]([C:12]2[N:16]([CH3:17])[N:15]=[C:14]([C:18](=O)[CH3:19])[C:13]=2[OH:21])=[CH:8][CH:7]=1)[CH2:2][CH2:3][CH2:4][CH3:5].[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>[CH2:1]([C:6]1[CH:11]=[CH:10][C:9]([C:12]2[N:16]([CH3:17])[N:15]=[C:14]([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:13]=2[OH:21])=[CH:8][CH:7]=1)[CH2:2][CH2:3][CH2:4][CH3:5]

Participants

6

Reactant 3

HCID 6228DimethylformamideHCID 27573784-(4-Carboxyphenyl)-3-thiosemicarbazideHCID 67050092HCID 67050092, compound

Product 1

HCID 727987944-{[(2-{1-[5-(4-n-pentylphenyl)-1-methyl-4-hydroxy-1H-pyrazol-3-yl]ethylidene}hydrazino)carbonothioyl]amino}benzoic acidYield 76%

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidCatalystHCID 962WaterSolvent

Procedure

1-[5-(4-n-Pentylphenyl)-1-methyl-4-hydroxy-1H-pyrazol-3-yl]ethanone (0.2381 mmol, HPLC purity 86.3%, 79.0 mg) and 4-hydrazinocarbonothioylaminobenzoic acid (0.2381 mmol, 50.3 mg) were stirred with dimethylformamide (3 mL) and three drops of concentrated hydrochloric acid at room temperature for 8.5 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 pale yellow solid (86.4 mg, yield 76%).

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-0245582a68f947d782c225efe02d065e
Source dataset
uspto-grants-2012_11
Patent number
US08318796B2

Reaction notes

Loading…