Sulfuric Acid → 1,3,5-Triiodo-2,4,6-triacetoxymethylbenzene

HRID 1418255Notes

Reaction equation

HRID 1418255 reaction equation
[I:1][C:2]1[C:7]([CH3:8])=[C:6]([I:9])[C:5]([CH3:10])=[C:4]([I:11])[C:3]=1[CH3:12].C([O:16][C:17](=[O:19])[CH3:18])(=O)C.S(=O)(=O)(O)O.[Mn]([O-])(=O)(=O)=O.[K+]>C(O)(=O)C>[I:1][C:2]1[C:3]([CH2:12][O:19][C:17](=[O:16])[CH3:18])=[C:4]([I:11])[C:5]([CH2:10][O:19][C:17](=[O:16])[CH3:18])=[C:6]([I:9])[C:7]=1[CH2:8][O:16][C:17](=[O:19])[CH3:18]

Participants

6

Reactant 4

HCID 1118Sulfuric AcidHCID 7918Acetic AnhydrideHCID 516875Potassium PermanganateHCID 6356131,3,5-Triiodo-2,4,6-trimethylbenzene

Product 1

HCID 235425991,3,5-Triiodo-2,4,6-triacetoxymethylbenzene

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Procedure

Triiodomesitylene (19.5 g, 39 mmol) was added to glacial acetic acid (200 ml) containing acetic anhydride (400 ml) and concentrated sulfuric acid (40 ml). Solid potassium permanganate (24.6 g, 156 mmol) was then added in small portions over a period of 3 h. After stirring for 16 h, the solvent was evaporated and water (200 ml) was added. The aqueous suspension was extracted with dichloromethane (250 ml) and the organic phase was washed with water (3×50 ml), dried (MgSO4) and evaporated. The solid residue was suspended in acetone and the white crystalline product was collected by filtration. Yield: 9.3 g (35%).

Workup

  1. customthe solvent was evaporated
  2. additionwater (200 ml) was added
  3. extractionThe aqueous suspension was extracted with dichloromethane (250 ml)
  4. washthe organic phase was washed with water (3×50 ml)
  5. dry with materialdried (MgSO4)
  6. customevaporated
  7. filtrationthe white crystalline product was collected by filtration

Sources & evidence

ORD record
ord-19a0cd0eafde45319feb6686ae06e130
Source dataset
uspto-grants-1999_03
Patent number
US05882628

Reaction notes

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