Sodium Carbonate → 3-[4-[1-Hydroxyimino-2-(2-fluorophenyl)ethyl]piperidino]methyl-1H-pyrazin-2-one

HRID 890098Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 890098
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH2:8][C:9]([CH:11]1[CH2:16][CH2:15][N:14]([CH2:17][C:18]2[C:19](=[O:24])[NH:20][CH:21]=[CH:22][N:23]=2)[CH2:13][CH2:12]1)=O.Cl.[NH2:26][OH:27].C(=O)([O-])[O-].[Na+].[Na+].[Cl-].[NH4+]>C(O)C.ClCCl.O>[OH:27][N:26]=[C:9]([CH:11]1[CH2:16][CH2:15][N:14]([CH2:17][C:18]2[C:19](=[O:24])[NH:20][CH:21]=[CH:22][N:23]=2)[CH2:13][CH2:12]1)[CH2:8][C:3]1[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=1[F:1]

Komponenten

8

Edukt 4

HCID 10340Sodium CarbonateHCID 25517Ammonium ChlorideHCID 443297Hydroxyamine hydrochlorideHCID 101933903-[4-[2-(2-Fluorophenyl)acetyl]piperidino]methyl-1H-pyrazin-2-one

Produkt 1

HCID 866013883-[4-[1-Hydroxyimino-2-(2-fluorophenyl)ethyl]piperidino]methyl-1H-pyrazin-2-oneAusbeute 70 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 702EthanolLösungsmittelHCID 962WaterLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

After suspending 150 mg of 3-[4-[2-(2-fluorophenyl)acetyl]piperidino]methyl-1H-pyrazin-2-one in 3 ml of ethanol, 47 mg of hydroxylamine hydrochloride and 193 mg of sodium carbonate were added while stirring and the mixture was heated to reflux for 1 hour. Water and saturated aqueous ammonium chloride solution were added to the reaction solution for adjustment to pH 7, and extraction was performed with dichloromethane. The organic layer was washed with brine and dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure. Diethyl ether was added and the insoluble portion was filtered out to obtain the title compound (109 mg, 70% yield).

Aufarbeitung

  1. additionwere added
  2. temperaturethe mixture was heated
  3. temperatureto reflux for 1 hour
  4. washThe organic layer was washed with brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. distillationthe solvent was distilled off under reduced pressure
  7. additionDiethyl ether was added
  8. filtrationthe insoluble portion was filtered out

Quellen und Nachweise

ORD-Eintrag
ord-da4da562dfd9463abf64463f665aea50
Quelldatensatz
uspto-grants-2006_02
Patentnummer
US06995144B2

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