Bromoacetyl bromide → HCID 66645692, compound

HRID 1694938Notes

Reaction equation

HRID 1694938 reaction equation
[Br:1][CH2:2][C:3](Br)=[O:4].[C:6]([O:10][C:11](=[O:26])[NH:12][C:13]([CH3:25])([CH3:24])[CH2:14][NH:15][C:16]1[CH:21]=[CH:20][CH:19]=[C:18]([F:22])[C:17]=1[CH3:23])([CH3:9])([CH3:8])[CH3:7].C(=O)(O)[O-].[Na+]>CN(C)C(=O)C>[C:6]([O:10][C:11](=[O:26])[NH:12][C:13]([CH3:25])([CH3:24])[CH2:14][N:15]([C:3](=[O:4])[CH2:2][Br:1])[C:16]1[CH:21]=[CH:20][CH:19]=[C:18]([F:22])[C:17]=1[CH3:23])([CH3:9])([CH3:8])[CH3:7]

Participants

5

Reactant 3

HCID 61147Bromoacetyl bromideHCID 516892Sodium BicarbonateHCID 66645505HCID 66645505, compound

Product 1

HCID 66645692HCID 66645692, compoundYield 76%

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Procedure

1.4 ml of bromoacetyl bromide (16.1 mmol) was added to a solution of 3.97 g of [1,1-dimethyl-2-(3-fluoro-2-methylphenylamino)ethyl]carbamic acid t-butyl ester obtained in Example (67a) (13.4 mmol) in N,N-dimethylacetamide (67 ml) under ice-cooling, and the mixture was stirred at the same temperature for 10 minutes. A saturated sodium bicarbonate aqueous solution was added to the reaction mixture, followed by extraction with ethyl acetate. Then, the organic layer was washed with water and brine and dried over anhydrous magnesium sulfate. After filtration, the solvent was evaporated under reduced pressure. Hexane was added to the residue, and the solid was collected by filtration to obtain 4.23 g of the title compound (yield: 76%).

Workup

  1. temperaturecooling
  2. extractionfollowed by extraction with ethyl acetate
  3. washThen, the organic layer was washed with water and brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. filtrationAfter filtration
  6. customthe solvent was evaporated under reduced pressure
  7. additionHexane was added to the residue
  8. filtrationthe solid was collected by filtration

Sources & evidence

ORD record
ord-4725476d691a4d369971dc83e69b0ef6
Source dataset
uspto-grants-2012_04
Patent number
US08158790B2

Reaction notes

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