p-Toluenesulfonic acid → 4-Tert-Butyl-N-(5-Hydroxy-4-Methyl-2-(2-Oxo-3-Phenylindolin-3-Yl)Phenyl)Benzenesulfonamide

HRID 415972

Reaction equation

HRID 415972 reaction equation
O[C:2]1([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[NH:4][C:3]1=[O:11].[C:18]([C:22]1[CH:27]=[CH:26][C:25]([S:28]([NH:31][C:32]2[CH:37]=[CH:36][C:35]([CH3:38])=[C:34]([OH:39])[CH:33]=2)(=[O:30])=[O:29])=[CH:24][CH:23]=1)([CH3:21])([CH3:20])[CH3:19].C1(C)C=CC(S(O)(=O)=O)=CC=1>ClC(Cl)C>[C:18]([C:22]1[CH:27]=[CH:26][C:25]([S:28]([NH:31][C:32]2[CH:33]=[C:34]([OH:39])[C:35]([CH3:38])=[CH:36][C:37]=2[C:2]2([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)[C:10]3[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=3)[NH:4][C:3]2=[O:11])(=[O:30])=[O:29])=[CH:24][CH:23]=1)([CH3:21])([CH3:20])[CH3:19]

Participants

5

Reactant 3

HCID 6101p-Toluenesulfonic acidHCID 158063-Hydroxy-3-phenyl-1,3-dihydroindol-2-oneHCID 8380834-tert-butyl-N-(3-hydroxy-4-methylphenyl)benzenesulfonamide

Product 1

HCID 104145404-Tert-Butyl-N-(5-Hydroxy-4-Methyl-2-(2-Oxo-3-Phenylindolin-3-Yl)Phenyl)BenzenesulfonamideYield 89.4%

Reagents, catalysts & solvents 1

HCID 63651,1-DichloroethaneSolvent

Procedure

As another non-limiting example, 4-tert-butyl-N-[5-hydroxy-4-methyl-2-(2-oxo-3-phenyl-2,3-dihydro-1H-indol-3-yl)-phenyl]-benzenesulfonamide (compound 1430) was synthesized by adding dropwise 4-tert-butyl-benzenesulfonyl chloride (8 g, 34 mmol) in 5 mL dichloromethane to a stirring solution of 5-Amino-2-methyl-phenol (4 g, 32 mmol) in 20 mL pyridine and letting the mixture spin overnight at room temperature. The resulting mixture was concentrated in vacuo and the product was purified by column chromatography to yield 8 g (78%) of 4-tert-butyl-N-(3-hydroxy-4-methyl-phenyl)-benzenesulfonamide. A mixture of 3-hydroxy-3-phenyl-1,3-dihydro-indol-2-one (3.9 g, 17 mmol), 4-tert-butyl-N-(3-hydroxy-4-methyl-phenyl)-benzenesulfonamide (7 g, 22 mmol) and p-toluenesulfonic acid (6.5 g, 32 mmol) in dichloroethane was refluxed for 12 hours. The resulting mixture was cooled to room temperature to yield a colorless solid. The solid was filtered and purified using column chromatography to yield 8 g (88%) of the desired product (compound 1430).

Workup

  1. temperaturewas refluxed for 12 hours
  2. customto yield a colorless solid
  3. filtrationThe solid was filtered
  4. custompurified

Sources & evidence

ORD record
ord-9ddec77d3a68441ca85603d3c79ff0df
Source dataset
uspto-grants-2012_01
Patent number
US08088816B2

Linked notes

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