Dimethylformamide → 4-(4-bromo-1H-pyrazol-1-yl)-1H-pyrrolo[2,3-b]pyridine

HRID 44963

Reaction equation

HRID 44963 reaction equation
Br[C:2]1[CH:7]=[CH:6][N:5]=[C:4]2[NH:8][CH:9]=[CH:10][C:3]=12.[Br:11][C:12]1[CH:13]=[N:14][NH:15][CH:16]=1.CN(C=O)C>CCOC(C)=O>[Br:11][C:12]1[CH:13]=[N:14][N:15]([C:2]2[CH:7]=[CH:6][N:5]=[C:4]3[NH:8][CH:9]=[CH:10][C:3]=23)[CH:16]=1

Participants

5

Reactant 3

HCID 6228DimethylformamideHCID 163754-BromopyrazoleHCID 222736434-Bromo-1H-pyrrolo[2,3-b]pyridine

Product 1

HCID 574776724-(4-bromo-1H-pyrazol-1-yl)-1H-pyrrolo[2,3-b]pyridine

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
150 °C

Procedure

A mixture of 4-bromo-1H-pyrrolo[2,3-b]pyridine (1.10 g, 0.00558 mol) and 4-bromo-1H-pyrazole (1.2 g, 0.0084 mol) was heated neat to 150° C. for 2 h. DMF was added to dissolve the crude residue. This residue was taken up in EtOAc and washed with 1N NaOH. The organic layer was washed with brine, dried over MgSO4, filtered and concentrated to give a crude 4-(4-bromo-1H-pyrazol-1-yl)-1H-pyrrolo[2,3-b]pyridine residue, LC/MS (M+H)+: 263,265.

Workup

  1. washwashed with 1N NaOH
  2. washThe organic layer was washed with brine
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-1de1844c622f487f92865c434c36fd30
Source dataset
uspto-grants-2013_09
Patent number
US08541425B2

Linked notes

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