1-(4-Pyridyl)piperazine → 1-({3-[2-(2,4-Dichlorophenyl)ethoxy]-4-methoxyphenyl}carbonyl)-4-(pyridin-4-yl)piperazine

HRID 967421Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 967421
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[CH2:9][CH2:10][O:11][C:12]1[CH:13]=[C:14]([CH:18]=[CH:19][C:20]=1[O:21][CH3:22])[C:15]([OH:17])=O.[N:23]1[CH:28]=[CH:27][C:26]([N:29]2[CH2:34][CH2:33][NH:32][CH2:31][CH2:30]2)=[CH:25][CH:24]=1.[B-](F)(F)(F)F.CCOC(C(C#N)=NOC(N(C)C)=[N+](C)C)=O>CN(C=O)C>[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[CH2:9][CH2:10][O:11][C:12]1[CH:13]=[C:14]([C:15]([N:32]2[CH2:33][CH2:34][N:29]([C:26]3[CH:27]=[CH:28][N:23]=[CH:24][CH:25]=3)[CH2:30][CH2:31]2)=[O:17])[CH:18]=[CH:19][C:20]=1[O:21][CH3:22]

Komponenten

5

Edukt 3

HCID 705171-(4-Pyridyl)piperazineHCID 2733286O-[(Ethoxycarbonyl)cyanomethylenamino]-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 154803323-[2-(2,4-Dichlorophenyl)ethoxy]-4-methoxybenzoic acid

Produkt 1

HCID 113292321-({3-[2-(2,4-Dichlorophenyl)ethoxy]-4-methoxyphenyl}carbonyl)-4-(pyridin-4-yl)piperazine

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

0.100 g (0.29 mmol) of 3-[2-(2,4-Dichloro-phenyl)-ethoxy]-4-methoxy-benzoic acid was dissolved in 2 ml of DMF and treated with 0.146 ml (1.16 mmol) of N-NEM and 47 mg (0.29 mmol) of 1-Pyridin-4-yl-piperazine and 0.098 g (0.3 mmol) of TOTU. The solution was stirred for 1 h at RT. The solvent was removed under reduced pressure, the residue was taken-up in DCM and the solution was washed three times with saturated aqueous sodium bicarbonate. The organic phase was dried with sodium sulphate, filtered and the solvent was removed under reduced pressure. The residue was chromatographed on silica gel eluting with n-heptane/ethyl acetate (1/1), ethyl acetate, and ethyl acetate/MeOH (10/1).

Aufarbeitung

  1. customThe solvent was removed under reduced pressure
  2. washthe solution was washed three times with saturated aqueous sodium bicarbonate
  3. dry with materialThe organic phase was dried with sodium sulphate
  4. filtrationfiltered
  5. customthe solvent was removed under reduced pressure
  6. customThe residue was chromatographed on silica gel eluting with n-heptane/ethyl acetate (1/1), ethyl acetate, and ethyl acetate/MeOH (10/1)

Quellen und Nachweise

ORD-Eintrag
ord-8c90b790dc3644debf7e31daa9595f3e
Quelldatensatz
uspto-grants-2005_10
Patentnummer
US06953857B2

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