Water → 4-(Pyridin-4-yl)butan-1-amine

HRID 1756547Notes

Reaction equation

HRID 1756547 reaction equation
[N:1]1[CH:6]=[CH:5][C:4]([CH2:7][CH2:8][CH2:9][C:10]#[N:11])=[CH:3][CH:2]=1.[H-].[Al+3].[Li+].[H-].[H-].[H-].O.[OH-].[Na+]>O1CCCC1>[N:1]1[CH:6]=[CH:5][C:4]([CH2:7][CH2:8][CH2:9][CH2:10][NH2:11])=[CH:3][CH:2]=1

Participants

6

Reactant 4

HCID 962Water2×HCID 14798Sodium HydroxideHCID 135575314-(Pyridin-4-YL)butanenitrileHCID 21226445Aluminium lithium hydride

Product 1

HCID 135575324-(Pyridin-4-yl)butan-1-amineYield 6.7%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Conditions

Temperature
10 °C

Procedure

The title product of Example 22 (5.0 g, 34.0 mmol) in 40 mL of tetrahydrofuran was added dropwise to a stirred suspension of lithium aluminum hydride (LiAlH4, 3.2 g, 85.0 mmol) in 100 mL of THF over 20 minutes. The reaction was brought to reflux for 2 hours, cooled to 10° C., and treated with water (33.2 mL), 15% NaOH (3.2 mL), and then water (9.6 mL) again. The mixture was filtered and the solid was washed with Et2O. The filtrate was dried (Na2SO4), filtered, and stripped of solvent to yield 4.0 g of crude product that was distilled to produce the title compound (340 mg).

Workup

  1. temperatureto reflux for 2 hours
  2. filtrationThe mixture was filtered
  3. washthe solid was washed with Et2O
  4. dry with materialThe filtrate was dried (Na2SO4)
  5. filtrationfiltered
  6. customto yield 4.0 g of crude product that
  7. distillationwas distilled

Sources & evidence

ORD record
ord-8be66a5f44f14a2ca6f362dff32dff88
Source dataset
uspto-grants-1995_08
Patent number
US05441950

Reaction notes

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