Ammonium Chloride → 3-(2-[4-(2-Methyl-5-quinolinyl)-1-piperazinyl]ethyl}aniline

HRID 15772

Reaction equation

HRID 15772 reaction equation
[CH3:1][C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[CH:7][C:8]=2[N:12]2[CH2:17][CH2:16][N:15]([CH2:18][CH2:19][C:20]3[CH:25]=[CH:24][CH:23]=[C:22]([N+:26]([O-])=O)[CH:21]=3)[CH2:14][CH2:13]2)[N:3]=1.[Cl-].[NH4+]>CO.O.[Fe]>[CH3:1][C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[CH:7][C:8]=2[N:12]2[CH2:13][CH2:14][N:15]([CH2:18][CH2:19][C:20]3[CH:21]=[C:22]([CH:23]=[CH:24][CH:25]=3)[NH2:26])[CH2:16][CH2:17]2)[N:3]=1

Participants

6

Reactant 2

HCID 25517Ammonium Chloride2×HCID 498519022-Methyl-5-(4-[2-(3-nitrophenyl)ethyl]-1-piperazinyl}quinoline

Product 1

HCID 498521053-(2-[4-(2-Methyl-5-quinolinyl)-1-piperazinyl]ethyl}anilineYield 84%

Reagents, catalysts & solvents 3

HCID 23925IronCatalyst2×HCID 887MethanolSolventHCID 962WaterSolvent

Procedure

A solution of 2-methyl-5-{4-[2-(3-nitrophenyl)ethyl]-1-piperazinyl}quinoline (D5) (0.14 g; 1 eq) in methanol (3 mL) was added dropwise to a suspension of iron powder (0.07 g; 3.2 eq) and ammonium chloride (0.1 g; 5.3 eq) in water (3 mL). The reactants were heated at reflux for 8 hours, adding additional amounts of iron powder (total 0.07 g; 3.2 eq) and ammonium chloride (total 0.1 g; 5.03 eq) in 3 portions during the reaction. The reaction mixture was filtered using a Millipore filter. The filtrate was concentrated under reduced pressure, diluted with water (5 mL) and a saturated aqueous solution of sodium hydrogen carbonate (2 mL), extracted into ethyl acetate (3×5 mL), dried over Na2SO4 and concentrated under reduced pressure obtaining the title compound in 84% yield (0.11 g).

Workup

  1. temperatureThe reactants were heated
  2. temperatureat reflux for 8 hours
  3. customduring the reaction
  4. filtrationThe reaction mixture was filtered
  5. filtrationfilter
  6. concentrationThe filtrate was concentrated under reduced pressure
  7. additiondiluted with water (5 mL)
  8. extractiona saturated aqueous solution of sodium hydrogen carbonate (2 mL), extracted into ethyl acetate (3×5 mL)
  9. dry with materialdried over Na2SO4
  10. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-b07f56696d174612beb8a424b503ba80
Source dataset
uspto-grants-2010_06
Patent number
US07732600B2

Linked notes

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