Sodium Cyanide → (Quinolin-6-yl)acetonitrile

HRID 401543

Reaction equation

HRID 401543 reaction equation
Br[CH2:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[N:9]=[CH:8][CH:7]=[CH:6]2.[C-:13]#[N:14].[Na+]>C(O)C>[N:9]1[C:10]2[C:5](=[CH:4][C:3]([CH2:2][C:13]#[N:14])=[CH:12][CH:11]=2)[CH:6]=[CH:7][CH:8]=1

Participants

4

Reactant 2

HCID 8929Sodium CyanideHCID 2243966-(Bromomethyl)quinoline

Product 1

HCID 21992552(Quinolin-6-yl)acetonitrileYield 18.3%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Conditions

Temperature
50 °C

Procedure

To a solution of crude 6-bromomethylquinoline (1.8 g) in 95% ethanol (30 mL) was added NaCN (2.0 g, 40.8 mmol) at room temperature. The mixture was heated at 50° C. for 3 hours and then concentrated under vacuum. Water (50 mL) and ethyl acetate (50 mL) were added. The organic layer was separated and the aqueous layer was extracted with ethyl acetate. The combined organics were washed with brine, dried over Na2SO4 and concentrated under vacuum. The combined crude product was purified by column (Petroleum Ether/EtOAc 5:1) to give 2-(quinolin-6-yl)acetonitrile (0.25 g, 8% over two steps). 1H NMR (300 MHz, CDCl3) δ 8.95 (dd, J=1.5, 4.2 Hz, 1H), 8.12-8.19 (m, 2H), 7.85 (s, 1H), 7.62 (dd, J=2.1, 8.7 Hz, 1H), 7.46 (q, J=4.2 Hz, 1H), 3.96 (s, 2H). MS (ESI) m/e (M+H)+169.0.

Workup

  1. concentrationconcentrated under vacuum
  2. additionWater (50 mL) and ethyl acetate (50 mL) were added
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was extracted with ethyl acetate
  5. washThe combined organics were washed with brine
  6. dry with materialdried over Na2SO4
  7. concentrationconcentrated under vacuum
  8. customwas purified by column (Petroleum Ether/EtOAc 5:1)

Sources & evidence

ORD record
ord-61e3d65ef972495e91d1fbde45d0cfc9
Source dataset
uspto-grants-2014_06
Patent number
US08741933B2

Linked notes

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