Potassium Iodide → (2R,5S)-5-Chloro-2-{2-[4-(4-fluoro-benzyl)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzaldehyde

HRID 11635

Reaktionsgleichung

Reaktionsgleichung von HRID 11635
Cl[CH2:2][C:3]([N:5]1[CH2:10][C@H:9]([CH3:11])[N:8]([CH2:12][C:13]2[CH:18]=[CH:17][C:16]([F:19])=[CH:15][CH:14]=2)[CH2:7][C@H:6]1[CH3:20])=[O:4].[Cl:21][C:22]1[CH:29]=[C:26]([CH:27]=[O:28])[C:25]([OH:30])=[CH:24][CH:23]=1.C(=O)([O-])[O-].[K+].[K+].[I-].[K+]>CN(C)C=O.[Cl-].[Na+].O>[Cl:21][C:22]1[CH:23]=[CH:24][C:25]([O:30][CH2:2][C:3]([N:5]2[CH2:10][C@H:9]([CH3:11])[N:8]([CH2:12][C:13]3[CH:18]=[CH:17][C:16]([F:19])=[CH:15][CH:14]=3)[CH2:7][C@H:6]2[CH3:20])=[O:4])=[C:26]([CH:29]=1)[CH:27]=[O:28]

Komponenten

7

Edukt 4

HCID 4875Potassium IodideHCID 11430Potassium CarbonateHCID 124815-Chloro-salicylaldehydeHCID 113584612-Chloro-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanone

Produkt 1

HCID 53673807(2R,5S)-5-Chloro-2-{2-[4-(4-fluoro-benzyl)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzaldehydeAusbeute 84,5 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 57417360Sodium chloride; waterLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

To a solution of 2-chloro-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanone (2.87 g, 9.6 mmol) in dimethylformamide (20 mL) was added 5-chlorosalicylaldehyde (1.65 g, 10.5 mmol), potassium carbonate (2.64 g, 19.2 mmol) and potassium iodide (1.59 g, 9.6 mmol). The resulting mixture was heated to 100° C. for 12 hours. The reaction was cooled, diluted with saturated aqueous brine and extracted with ethyl acetate. The organic layer was dried over magnesium sulfate and filtered. The filtrate was concentrated in vacuo to give crude product. Purification via chromatography on silica gel gave the title compound (3.40 g).

Aufarbeitung

  1. temperatureThe reaction was cooled
  2. extractionextracted with ethyl acetate
  3. dry with materialThe organic layer was dried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationThe filtrate was concentrated in vacuo
  6. customto give crude product
  7. customPurification via chromatography on silica gel

Quellen und Nachweise

ORD-Eintrag
ord-505cb70f068b4b7f89454fbc2fbe49c7
Quelldatensatz
uspto-grants-2006_08
Patentnummer
US07098212B2

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