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Potassium Carbonate → HCID 69961365, Verbindung

HRID 1291297
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1291297
[C:1]([N:5]1[C:10](=[O:11])[C:9]2[CH:12]=[N:13][NH:14][C:8]=2[CH:7]=[N:6]1)([CH3:4])([CH3:3])[CH3:2].[Cl:15][C:16]1[CH:31]=[C:30]([Cl:32])[CH:29]=[CH:28][C:17]=1[C:18]([C:20]1[CH:27]=[CH:26][C:23]([CH2:24]Br)=[CH:22][CH:21]=1)=[O:19].C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C>[C:1]([N:5]1[C:10](=[O:11])[C:9]2=[CH:12][N:13]([CH2:24][C:23]3[CH:22]=[CH:21][C:20]([C:18](=[O:19])[C:17]4[CH:28]=[CH:29][C:30]([Cl:32])=[CH:31][C:16]=4[Cl:15])=[CH:27][CH:26]=3)[N:14]=[C:8]2[CH:7]=[N:6]1)([CH3:4])([CH3:2])[CH3:3]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 11430Potassium CarbonateHCID 189191095-Tert-butyl-1H-pyrazolo[3,4-d]pyridazin-4(5H)-oneHCID 189192794-(2,4-Dichlorobenzoyl)benzyl bromide

Produkt 1

HCID 69961365HCID 69961365, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

In DMF (5 ml) was dissolved 5-t-butyl-1H-pyrazolo [3,4-d]pyridazin-4(5H)-one (288 mg) followed by addition of 4-(2,4-dichlorobenzoyl)benzyl bromide (791 mg) and potassium carbonate (318 mg), and the mixture was stirred at room temperature for 15 hours. This reaction mixture was extracted with ethyl acetate and the organic layer was serially washed with water and saturated aqueous NaCl solution, dried over anhydrous magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography (n-hexaneethyl acetate=1:1). Then, 5-t-butyl-2-[4-(2,4-dichlorobenzoyl)benzyl]-2H-pyrazolo [3,4-d]pyridazin-4(5H)-one was washed with n-hexane-diethyl ether and dried.

Aufarbeitung

  1. extractionThis reaction mixture was extracted with ethyl acetate
  2. washthe organic layer was serially washed with water and saturated aqueous NaCl solution
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated
  5. customThe residue was purified by silica gel column chromatography (n-hexaneethyl acetate=1:1)
  6. washThen, 5-t-butyl-2-[4-(2,4-dichlorobenzoyl)benzyl]-2H-pyrazolo [3,4-d]pyridazin-4(5H)-one was washed with n-hexane-diethyl ether
  7. customdried

Quellen und Nachweise

ORD-Eintrag
ord-f19db99f8abf419f945e65773f60d1bd
Quelldatensatz
uspto-grants-1998_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05753664

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