Dimethylformamide → 4-methyl-3-[4-(1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]pyridin-4-yl)-1H-pyrazol-1-yl]benzonitrile

HRID 1962735Notes

Reaction equation

HRID 1962735 reaction equation
[NH:1]1[CH:5]=[C:4]([C:6]2[CH:11]=[CH:10][N:9]=[C:8]3[N:12]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:21])[CH3:20])[CH:13]=[CH:14][C:7]=23)[CH:3]=[N:2]1.C(=O)([O-])[O-].[Cs+].[Cs+].CN(C=O)C.F[C:35]1[CH:36]=[C:37]([CH:40]=[CH:41][C:42]=1[CH3:43])[C:38]#[N:39]>>[CH3:43][C:42]1[CH:41]=[CH:40][C:37]([C:38]#[N:39])=[CH:36][C:35]=1[N:1]1[CH:5]=[C:4]([C:6]2[CH:11]=[CH:10][N:9]=[C:8]3[N:12]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:21])[CH3:20])[CH:13]=[CH:14][C:7]=23)[CH:3]=[N:2]1

Participants

5

Reactant 4

HCID 6228DimethylformamideHCID 10796Cesium carbonateHCID 5851403-Fluoro-4-methylbenzonitrileHCID 574775784-(1H-Pyrazol-4-yl)-1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]pyridine

Product 1

HCID 574776854-methyl-3-[4-(1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]pyridin-4-yl)-1H-pyrazol-1-yl]benzonitrile

Conditions

Temperature
120 °C

Procedure

To a mixture of 4-(1H-pyrazol-4-yl)-1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]-pyridine (0.050 g, 0.00016 mol) (see, Example 231, Step 1) and cesium carbonate (0.10 g, 0.00032 mol) in dry DMF (1.0 mL, 0.013 mol) was added 3-fluoro-4-methylbenzonitrile (0.043 g, 0.00032 mol). The reaction mixture was heated in sealed tube to 120° C. for 5.5 hours. The reaction was allowed to cool and partitioned between ethyl acetate and water. The organic layer was washed with water, brine, dried over magnesium sulfate, filtered, and concentrated to give 4-methyl-3-[4-(1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]pyridin-4-yl)-1H-pyrazol-1-yl]benzonitrile as a crude product, LC/MS (M+H)+: 430.

Workup

  1. temperatureto cool
  2. custompartitioned between ethyl acetate and water
  3. washThe organic layer was washed with water, brine
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-f05975ac6a52448f83b04070520f71df
Source dataset
uspto-grants-2013_04
Patent number
US08415362B2

Reaction notes

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