1-Methylpiperazine → HCID 18472616, compound

HRID 2228083Notes

Reaction equation

HRID 2228083 reaction equation
ClC[C:3]1[CH:8]=[CH:7][C:6]([NH:9][C:10]([C:12]2[CH2:21][CH2:20][C:19]3[C:14](=[CH:15][C:16]([C:22]4[CH:27]=[CH:26][C:25]([CH3:28])=[CH:24][CH:23]=4)=[CH:17][CH:18]=3)[CH:13]=2)=[O:11])=[CH:5][CH:4]=1.[CH3:29][N:30]1[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]1.[C:36](=O)([O-])O.[Na+]>C1COCC1>[CH3:28][C:25]1[CH:26]=[CH:27][C:22]([C:16]2[CH:15]=[C:14]3[C:19]([CH2:20][CH2:21][C:12]([C:10]([NH:9][C:6]4[CH:7]=[CH:8][C:3]([CH2:29][N:30]5[CH2:35][CH2:34][N:33]([CH3:36])[CH2:32][CH2:31]5)=[CH:4][CH:5]=4)=[O:11])=[CH:13]3)=[CH:18][CH:17]=2)=[CH:23][CH:24]=1

Participants

5

Reactant 3

HCID 531671-MethylpiperazineHCID 516892Sodium BicarbonateHCID 18472361N-[4-(chloromethyl)phenyl]-7-(4-methylphenyl)-3,4-dihydronaphthalene-2-carboxamide

Product 1

HCID 18472616HCID 18472616, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

In THF (7 ml) was dissolved N-[4—(chloromethyl)-phenyl]-7—(4-methylphenyl)-3,4-dihydro-naphthalene-2-carboxamide (150 mg), and to the mixture was added 1-methylpiperazine (129 μl). The mixture was refluxed for 24 hours. The reaction mixture was cooled to room temperature, and to the mixture was added 5% sodium hydrogen carbonate solution (50 ml). The mixture was extracted with ethyl acetate. The organic layer was washed with saturated sodium chloride solution, dried with anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was separated and purified with column chromatography (ethyl acetate/triethylamine=20/1) and recrystallized from ethyl acetate-hexane to give 7—(4-methylphenyl)-N-[4—(4-methyl-1-piperazinylmethyl)phenyl]-3,4-dihydronaphthalene-2-carboxamide (Compound 40) (105 mg) as colorless crystals.

Workup

  1. temperatureThe mixture was refluxed for 24 hours
  2. extractionThe mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with saturated sodium chloride solution
  4. dry with materialdried with anhydrous sodium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was separated
  7. custompurified with column chromatography (ethyl acetate/triethylamine=20/1)
  8. customrecrystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-fbc0d1dea1c944048d777b14f0caf6b6
Source dataset
uspto-grants-2002_07
Patent number
US06413947B1

Reaction notes

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