Ethanol → Ethyl 4-iodobenzoate

HRID 619559Notes

Reaction equation

HRID 619559 reaction equation
[I:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1.S(Cl)(Cl)=O.[CH2:15](O)[CH3:16]>>[CH2:15]([O:7][C:6](=[O:8])[C:5]1[CH:9]=[CH:10][C:2]([I:1])=[CH:3][CH:4]=1)[CH3:16]

Participants

4

Reactant 3

HCID 702EthanolHCID 120854-Iodobenzoic acidHCID 24386Thionyl Chloride

Product 1

HCID 142891Ethyl 4-iodobenzoate

Procedure

To a suspension of 10 g (40.32 mmol) of 4-iodobenzoic acid in 100 ml absolute ethanol was added 2 ml thionyl chloride and the mixture was then heated at reflux for 3 hours. Solvent was removed in vacuo and the residue was dissolved in 100 ml ether. The ether solution was washed with saturated NaHCO3 and saturated NaCl solutions and dried (MgSO4). Solvent was then removed in vacuo and the residue Kugelrohr distilled (100° C.; 0.55 mm) to give the title compound as a colorless oil, PMR (CDCl3): δ 1.42 (3H, t, J~7 Hz), 4,4 (2H, q, J~7 Hz), 7.8 (4H).

Workup

  1. temperaturethe mixture was then heated
  2. temperatureat reflux for 3 hours
  3. customSolvent was removed in vacuo
  4. dissolutionthe residue was dissolved in 100 ml ether
  5. washThe ether solution was washed with saturated NaHCO3 and saturated NaCl solutions
  6. dry with materialdried (MgSO4)
  7. customSolvent was then removed in vacuo
  8. distillationthe residue Kugelrohr distilled (100° C.; 0.55 mm)

Sources & evidence

ORD record
ord-6966bc4515b840dd954d67ad68f7d59f
Source dataset
uspto-grants-1999_09
Patent number
US05958954

Reaction notes

Loading…