Potassium Carbonate → N,N-bis(3-methylbutyl)-4-nitro-3-[(3-piperidin-1-ylpropyl)amino]benzamide

HRID 2063505Notes

Reaction equation

HRID 2063505 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].[NH2:24][CH2:25][CH2:26][CH2:27][N:28]1[CH2:33][CH2:32][CH2:31][CH2:30][CH2:29]1.C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[CH3:11][CH:10]([CH3:12])[CH2:9][CH2:8][N:7]([CH2:13][CH2:14][CH:15]([CH3:17])[CH3:16])[C:5](=[O:6])[C:4]1[CH:18]=[CH:19][C:20]([N+:21]([O-:23])=[O:22])=[C:2]([NH:24][CH2:25][CH2:26][CH2:27][N:28]2[CH2:33][CH2:32][CH2:31][CH2:30][CH2:29]2)[CH:3]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 19049Piperidine-1-propylamineHCID 684471113-fluoro-N,N-bis(3-methylbutyl)-4-nitrobenzamide

Product 1

HCID 68446148N,N-bis(3-methylbutyl)-4-nitro-3-[(3-piperidin-1-ylpropyl)amino]benzamideYield 100%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A mixture of 3-fluoro-N,N-bis(3-methylbutyl)-4-nitrobenzamide (4 g, 1 eq), 3-aminopropylpiperidine (1.9 g, 1.1 eq) and potassium carbonate (3.4 g, 2 eq) in acetonitrile (150 ml) is heated under reflux for 3 hours then concentrated under reduced pressure at 40° C. The residue is taken up in dichloromethane (200 ml) and water (80 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:ethyl acetate 100% to ethyl acetate/methanol 80:20) produces the expected compound in the form of a yellow oil (5.5 g; 100% yield).

Workup

  1. temperatureis heated
  2. temperatureunder reflux for 3 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:ethyl acetate 100% to ethyl acetate/methanol 80:20)

Sources & evidence

ORD record
ord-339de25668d1495a8d717ff435e50d4f
Source dataset
uspto-grants-2012_10
Patent number
US08288395B2

Reaction notes

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