Sodium Iodide → 2-Iodo-4-(trifluoromethyl)phenol

HRID 1695117Notes

Reaction equation

HRID 1695117 reaction equation
[F:1][C:2]([F:11])([F:10])[C:3]1[CH:8]=[CH:7][C:6]([OH:9])=[CH:5][CH:4]=1.[Na+].[I-:13]>CN(C=O)C.Cl>[I:13][C:5]1[CH:4]=[C:3]([C:2]([F:10])([F:11])[F:1])[CH:8]=[CH:7][C:6]=1[OH:9]

Participants

5

Reactant 2

HCID 5238Sodium IodideHCID 678744-(Trifluoromethyl)phenol

Product 1

HCID 115728162-Iodo-4-(trifluoromethyl)phenolYield 91.5%

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidSolventHCID 6228DimethylformamideSolvent

Procedure

4-(trifluoromethyl)-phenol (8 g) in anhydrous DMF (80 ml) was cooled to 0° C. NaI (9.06 g) and chloroamine-T (16.1 g) was added portionwise and stirred at room temperature overnight. Then diluted with 2M HCl and extracted with ethylacetate. The organic phase was washed with sodium thiosulfate solution, dried (MgSO4) and concentrated in vacuo. The residue was purified by chromatography (silica, eluting with isohexane:ethyl acetate) to give the sub-title compound as a yellow oil (13 g).

Workup

  1. extractionextracted with ethylacetate
  2. washThe organic phase was washed with sodium thiosulfate solution
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by chromatography (silica, eluting with isohexane:ethyl acetate)

Sources & evidence

ORD record
ord-8d7005374a22469198a2af8e4fa158ba
Source dataset
uspto-grants-2012_04
Patent number
US08163727B2

Reaction notes

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