Dimethylformamide → 1-[(4-Fluorophenyl)(phenyl)methyl]-2-formyl-4,6-dimethyl-1H-pyrrolo[2,3-b]pyridine-3-carbonitrile

HRID 730426Notes

Reaction equation

HRID 730426 reaction equation
C(NC(C)C)(C)C.C([Li])CCC.CCCCCC.[F:19][C:20]1[CH:25]=[CH:24][C:23]([CH:26]([C:40]2[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=2)[N:27]2[C:31]3=[N:32][C:33]([CH3:37])=[CH:34][C:35]([CH3:36])=[C:30]3[C:29]([C:38]#[N:39])=[CH:28]2)=[CH:22][CH:21]=1.CN(C)[CH:48]=[O:49]>O1CCCC1.O>[F:19][C:20]1[CH:21]=[CH:22][C:23]([CH:26]([C:40]2[CH:41]=[CH:42][CH:43]=[CH:44][CH:45]=2)[N:27]2[C:31]3=[N:32][C:33]([CH3:37])=[CH:34][C:35]([CH3:36])=[C:30]3[C:29]([C:38]#[N:39])=[C:28]2[CH:48]=[O:49])=[CH:24][CH:25]=1

Participants

8

Reactant 5

HCID 6228DimethylformamideHCID 7912DiisopropylamineHCID 8058HexaneHCID 690584651-[(4-Fluorophenyl)(phenyl)methyl]-4,6-dimethyl-1H-pyrrolo[2,3-b]pyridine-3-carbonitrileHCID 178418339Butyllithium

Product 1

HCID 867609531-[(4-Fluorophenyl)(phenyl)methyl]-2-formyl-4,6-dimethyl-1H-pyrrolo[2,3-b]pyridine-3-carbonitrile

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
-78 °C

Procedure

To a solution of diisopropylamine (4.46 ml, 34.0 mmol) in tetrahydrofuran (50 ml) was added a 1.6 N solution of butyllithium in hexane (21.3 ml, 34.0 mmol) at −78° C., and the mixture was stirred at −78° C. for 15 minutes. To the resultant solution was added dropwise 1-[(4-fluorophenyl)(phenyl)methyl]-4,6-dimethyl-1H-pyrrolo[2,3-b]pyridine-3-carbonitrile (9.35 g, 26.3 mmol) at −78° C., and the mixture was stirred at −78° C. for 30 minutes. Dimethylformamide (5.26 ml, 68.0 mmol) was added thereto, the resulting mixture was stirred at room temperature for 1.5 hours, poured into iced water and extracted with ethyl acetate. The extract was washed with water and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure to give the objective product as a solid material.

Workup

  1. stirringthe mixture was stirred at −78° C. for 30 minutes
  2. stirringthe resulting mixture was stirred at room temperature for 1.5 hours
  3. extractionextracted with ethyl acetate
  4. washThe extract was washed with water
  5. dry with materialdried over anhydrous magnesium sulfate
  6. distillationThe solvent was distilled off under reduced pressure

Sources & evidence

ORD record
ord-3e12f060d5ba47feacf19fac42fed92f
Source dataset
uspto-grants-2009_09
Patent number
US07582651B2

Reaction notes

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