Ethyl Acetate → 2-(2,3,5-Trichlorophenyl)-3-oxobutyronitrile

HRID 1682451Notes

Reaction equation

HRID 1682451 reaction equation
[CH3:1][CH2:2][O-:3].[Na+].[Cl:5][C:6]1[C:11]([Cl:12])=[CH:10][C:9]([Cl:13])=[CH:8][C:7]=1[CH2:14][C:15]#[N:16].C(OCC)(=O)C>C(O)C>[Cl:5][C:6]1[C:11]([Cl:12])=[CH:10][C:9]([Cl:13])=[CH:8][C:7]=1[CH:14]([C:2](=[O:3])[CH3:1])[C:15]#[N:16]

Participants

5

Reactant 3

HCID 8857Ethyl AcetateHCID 2723922Sodium ethoxideHCID 197050992-(2,3,5-Trichlorophenyl)acetonitrile

Product 1

HCID 197050532-(2,3,5-Trichlorophenyl)-3-oxobutyronitrile

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of NaOEt (from 0.68 g of sodium) in ethanol (20 ml) was added 2,3,5-trichlorophenylacetonitrile (5 g) and ethyl acetate (4.43 ml). The mixture was heated under reflux, under nitrogen for 2.5 hours. The mixture was left standing at room temperature overnight. The mixture was then concentrated and the residue was dissolved in water. The aqueous phase was washed with ether, acidified with concentrated H2SO4 and extracted with ether. The extracts were bulked, dried (MgSO4) and evaporated, 2.59 g, mp. 134°-135° C.

Workup

  1. temperatureThe mixture was heated
  2. temperatureunder reflux, under nitrogen for 2.5 hours
  3. waitThe mixture was left
  4. concentrationThe mixture was then concentrated
  5. dissolutionthe residue was dissolved in water
  6. washThe aqueous phase was washed with ether
  7. extractionextracted with ether
  8. dry with materialdried (MgSO4)
  9. customevaporated

Sources & evidence

ORD record
ord-a74d042be34d4310b23a24c3dbf72a79
Source dataset
uspto-grants-1997_06
Patent number
US05635507

Reaction notes

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