N-Ethyl-2-iodobenzamide → HCID 18630027, compound

HRID 1440608Notes

Reaction equation

HRID 1440608 reaction equation
[CH3:1][C:2]([CH3:5])([O-:4])[CH3:3].[K+].[CH2:7]([NH:9][C:10](=[O:18])[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=1I)[CH3:8]>N1C=CC=CC=1.[OH-].[NH4+]>[CH2:7]([NH:9][C:10](=[O:18])[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=1[O:4][C:2]([CH3:5])([CH3:3])[CH3:1])[CH3:8]

Participants

5

Reactant 2

HCID 967640N-Ethyl-2-iodobenzamideHCID 23665647Potassium tert-butoxide

Product 1

HCID 18630027HCID 18630027, compoundYield 29.3%

Reagents, catalysts & solvents 2

HCID 1049PyridineSolvent2×HCID 14923Ammonium HydroxideSolvent

Procedure

Potassium t-butoxide (12.25 g, 0.109 mol) was dissolved in pyridine (50 mL) and cuprous chloride (10.81 g, 0.109 mol) was added. The black suspension was stirred at RT for 30 min and N-ethyl-2-iodobenzamide (10.00 g, 36.4 mmol) dissolved in pyridine (20 mL) was added dropwise. The mixture was stirred at room temperature for 1 h and was poured in aq ammonium hydroxide and extracted with ether. The organic extracts were washed with 1N NaOH, brine, dried (MgSO4) and concentrated to afford a brown semi-solid. The crude product was purified by flash chromatography (ethyl acetate/hexanes) to afford the title compound as a light yellow solid (2.36 g, 29%). m.p. 34.5°-36° C.

Workup

  1. additionwas added dropwise
  2. stirringThe mixture was stirred at room temperature for 1 h
  3. extractionextracted with ether
  4. washThe organic extracts were washed with 1N NaOH, brine
  5. dry with materialdried (MgSO4)
  6. concentrationconcentrated
  7. customto afford a brown semi-solid
  8. customThe crude product was purified by flash chromatography (ethyl acetate/hexanes)

Sources & evidence

ORD record
ord-8de73031f83e4a3c858d01062bc221b0
Source dataset
uspto-grants-1996_03
Patent number
US05498630

Reaction notes

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