Potassium Carbonate → 3-{[3-(dimethylamino)propyl]amino}-N,N-bis(3-methylbutyl)-4-nitrobenzamide

HRID 1784259Notes

Reaction equation

HRID 1784259 reaction equation
F[C:2]1[CH:3]=[C:4]([CH:18]=[CH:19][C:20]=1[N+:21]([O-:23])=[O:22])[C:5]([N:7]([CH2:13][CH2:14][CH:15]([CH3:17])[CH3:16])[CH2:8][CH2:9][CH:10]([CH3:12])[CH3:11])=[O:6].[CH2:24]([N:26]([CH2:31]C)[CH2:27][CH2:28][CH2:29][NH2:30])C.C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[CH3:24][N:26]([CH3:31])[CH2:27][CH2:28][CH2:29][NH:30][C:2]1[CH:3]=[C:4]([CH:18]=[CH:19][C:20]=1[N+:21]([O-:23])=[O:22])[C:5]([N:7]([CH2:13][CH2:14][CH:15]([CH3:17])[CH3:16])[CH2:8][CH2:9][CH:10]([CH3:12])[CH3:11])=[O:6]

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 61011N,N-Diethyl-1,3-propanediamineHCID 684471113-fluoro-N,N-bis(3-methylbutyl)-4-nitrobenzamide

Product 1

HCID 687903453-{[3-(dimethylamino)propyl]amino}-N,N-bis(3-methylbutyl)-4-nitrobenzamideYield 68%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A mixture of 3-fluoro-N,N-bis(3-methylbutyl)-4-nitrobenzamide (2.5 g, 1 eq, prepared according to Example A1), 3-diethylamino-propylamine (877 mg, 1.1 eq) and potassium carbonate (2.13 g, 2 eq) in acetonitrile (80 ml) is heated under reflux for hours then concentrated under reduced pressure at 40° C. The residue is taken up in dichloromethane (130 ml) and water (50 ml). After decantation and extractions, the combined organic phases are washed with salt water, dried over Na2SO4 then concentrated under reduced pressure at 40° C. Purification of the residue by flash chromatography on silica gel (eluent: dichloromethane/methanol 9:1) produces the expected compound in the form of a yellow oil (2.1 g mg; 68% yield).

Workup

  1. temperatureis heated
  2. temperatureunder reflux for hours
  3. concentrationthen concentrated under reduced pressure at 40° C
  4. extractionAfter decantation and extractions
  5. washthe combined organic phases are washed with salt water
  6. dry with materialdried over Na2SO4
  7. concentrationthen concentrated under reduced pressure at 40° C
  8. customPurification of the residue by flash chromatography on silica gel (eluent: dichloromethane/methanol 9:1)

Sources & evidence

ORD record
ord-2a692e45e1de47b292bd69fefe7aa0ac
Source dataset
uspto-grants-2009_03
Patent number
US07501524B2

Reaction notes

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