1,2-Dichloroethane → 5-Iodo-2-methoxybenzamide

HRID 908306Notes

Reaction equation

HRID 908306 reaction equation
[I:1][C:2]1[CH:3]=[CH:4][C:5]([O:11][CH3:12])=[C:6]([CH:10]=1)[C:7](O)=[O:8].C(Cl)CCl.C1C=[N:21]C2N(O)N=NC=2C=1.[Cl-].[NH4+].CCN(C(C)C)C(C)C>CN(C=O)C.O>[I:1][C:2]1[CH:3]=[CH:4][C:5]([O:11][CH3:12])=[C:6]([CH:10]=1)[C:7]([NH2:21])=[O:8]

Participants

8

Procedure

5-iodo-2-methoxybenzoic acid (1.01 g, 3.63 mmol) was dissolved in DMF (8.0 ml) and EDC (0.86 g, 4.5 mmol), HOAt (0.59 g, 4.3 mmol), ammonium chloride (0.79 g, 14.8 mmol), and iPr2NEt (2.0 ml, 11.5 mmol) were added. The reaction was stirred at room temperature under nitrogen overnight, and then poured into water (40 ml), resulting in the formation of a precipitate. The suspension was filtered and the solid was collected. The filtrate was extracted with EtOAc (3×25 ml), and the organic extracts were combined, dried over sodium sulfate, filtered, combined with the filtered solid, and concentrated. The crude was dissolved in DMF (ca. 10 ml) and poured into water (60 ml). This was then cooled in an ice water bath, and filtered, and the solid was collected and dried in vacuo to give title compound (0.38 g, 38%). MS (ESI pos. ion) m/z: 278 (M+H). Calc'd Exact Mass for C8H8INO2: 277.

Workup

  1. customresulting in the formation of a precipitate
  2. filtrationThe suspension was filtered
  3. customthe solid was collected
  4. extractionThe filtrate was extracted with EtOAc (3×25 ml)
  5. dry with materialdried over sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. dissolutionThe crude was dissolved in DMF (ca. 10 ml)
  9. additionpoured into water (60 ml)
  10. temperatureThis was then cooled in an ice water bath
  11. filtrationfiltered
  12. customthe solid was collected
  13. customdried in vacuo

Sources & evidence

ORD record
ord-c64210a9691a43318d9d47c4e37cef44
Source dataset
uspto-grants-2011_09
Patent number
US08017601B2

Reaction notes

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