Iodine → HCID 178517806, compound

HRID 1888749Notes

Reaction equation

HRID 1888749 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([OH:8])[CH:5]=[CH:4][CH:3]=1.C(=O)([O-])[O-].[Na+].[Na+].[I:15]I>O>[Cl:1][C:2]1[N:7]=[C:6]([OH:8])[C:5]([I:15])=[CH:4][CH:3]=1

Participants

5

Procedure

To a solution of 6-chloropyridin-2-ol (3.00 g, 23.2 mmol) and sodium carbonate (4.88 g, 46.4 mmol) in water (60 mL) was added iodine (5.84 g, 23.0 mmol), and the mixture was stirred at room temperature overnight. The resulting solid was collected by filtration, 1N hydrochloric acid was added to the obtained solid, and the mixture was extracted twice with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and to the obtained residue were added diisopropyl ether and hexane, and the resulting solid was collected by filtration to give the title compound (1.04 g, yield 18%).

Workup

  1. filtrationThe resulting solid was collected by filtration, 1N hydrochloric acid
  2. additionwas added to the obtained solid
  3. extractionthe mixture was extracted twice with ethyl acetate
  4. washThe extract was washed with saturated brine
  5. dry with materialdried over anhydrous sodium sulfate
  6. customThe solvent was evaporated under reduced pressure
  7. additionto the obtained residue were added diisopropyl ether and hexane
  8. filtrationthe resulting solid was collected by filtration

Sources & evidence

ORD record
ord-42be48b88d56455c8822a84ed4f3f790
Source dataset
uspto-grants-2013_08
Patent number
US08501804B2

Reaction notes

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