Water → 3-Bromo-5-chloro-1-[(4-methylphenyl)sulfonyl]-1H-pyrrolo[2,3-b]pyridine

HRID 1786770Notes

Reaction equation

HRID 1786770 reaction equation
[H-].[Na+].[Br:3][C:4]1[C:12]2[C:7](=[N:8][CH:9]=[C:10]([Cl:13])[CH:11]=2)[NH:6][CH:5]=1.[S:14](Cl)([C:17]1[CH:23]=[CH:22][C:20]([CH3:21])=[CH:19][CH:18]=1)(=[O:16])=[O:15].O>CN(C)C=O>[Br:3][C:4]1[C:12]2[C:7](=[N:8][CH:9]=[C:10]([Cl:13])[CH:11]=2)[N:6]([S:14]([C:17]2[CH:23]=[CH:22][C:20]([CH3:21])=[CH:19][CH:18]=2)(=[O:16])=[O:15])[CH:5]=1

Participants

6

Reactant 4

HCID 962WaterHCID 73974-Toluenesulfonyl chlorideHCID 24758Sodium hydrideHCID 272827223-Bromo-5-chloro-1H-pyrrolo[2,3-b]pyridine

Product 1

HCID 497590673-Bromo-5-chloro-1-[(4-methylphenyl)sulfonyl]-1H-pyrrolo[2,3-b]pyridineYield 85.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Sodium hydride (2.2 g, 54 mmol) was added portionwise to an ice-cold solution of 3-bromo-5-chloro-1H-pyrrolo[2,3-b]pyridine (4) (10.5 g, 45 mmol) in dimethylformamide (70 ml) under nitrogen. Thirty minutes later, tosyl chloride (8.7 g, 46 mmol) was added to the reaction mixture and the reaction mixture was stirred at room temperature for 18 h. The reaction mixture was hydrolysed with water (˜150 ml) and a brown solid was obtained by filtration and dried in vacuo to afford the title compound (14.8 g, 85%). 1H NMR (CDCl3) 2.4 (3H, s), 7.3-7.4 (2H, d), 7.8-7.9 (2H, 2s), 8.1-8.2 (2H, d), 8.4 (1H, s); MS(ES+) 387

Workup

  1. customa brown solid was obtained by filtration
  2. customdried in vacuo

Sources & evidence

ORD record
ord-cae7335081ca40209b7dbd8b66941b62
Source dataset
uspto-grants-2009_03
Patent number
US07507826B2

Reaction notes

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