Water → methyl 5-(4-bromo-2-formyl-N-propylanilino)pentanoate

HRID 1928928Notes

Reaction equation

HRID 1928928 reaction equation
[Br:1][C:2]1[CH:18]=[CH:17][C:5]([N:6]([CH2:10][CH2:11][CH2:12][CH2:13][C:14]([OH:16])=[O:15])[CH2:7][CH2:8][CH3:9])=[C:4]([CH:19]=[O:20])[CH:3]=1.[C:21](=O)([O-])[O-].[K+].[K+].IC.O>CN(C=O)C>[Br:1][C:2]1[CH:18]=[CH:17][C:5]([N:6]([CH2:10][CH2:11][CH2:12][CH2:13][C:14]([O:16][CH3:21])=[O:15])[CH2:7][CH2:8][CH3:9])=[C:4]([CH:19]=[O:20])[CH:3]=1

Participants

6

Reactant 4

HCID 962WaterHCID 6328Methyl iodideHCID 11430Potassium CarbonateHCID 865955795-(4-bromo-2-formyl-N-propylanilino)pentanoic acid

Product 1

HCID 86595580methyl 5-(4-bromo-2-formyl-N-propylanilino)pentanoateYield 94.7%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Procedure

To a suspension of 5-(4-bromo-2-formyl-N-propylanilino)pentanoic acid (8.00 g) and potassium carbonate (3.88 g) in DMF (25 ml) was added dropwise a solution of iodomethane (4.66 g) in DMF (5 ml) under a nitrogen atmosphere. The mixture was stirred overnight under a nitrogen atmosphere. Then, water was added and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated saline and dried over magnesium sulfate. The solvent was distilled off under reduced pressure to obtain brown oil of methyl 5-(4-bromo-2-formyl-N-propylanilino)pentanoate (7.89 g).

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated saline
  3. dry with materialdried over magnesium sulfate
  4. distillationThe solvent was distilled off under reduced pressure

Sources & evidence

ORD record
ord-e4a6752e0ce449299ebc2b4055f2887f
Source dataset
uspto-grants-2012_05
Patent number
US08183273B2

Reaction notes

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