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Potassium Iodide → HCID 19786588, Verbindung

HRID 1657110
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1657110
Cl[CH2:2][CH2:3][CH2:4][CH:5]1[C:20](=[O:21])[C:9]2[C:10]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=3[F:19])=[N:11][O:12][C:8]=2[CH2:7][CH2:6]1.C(=O)([O-])[O-].[K+].[K+].C(N(C(C)C)CC)(C)C.[N:37]1[CH:42]=[CH:41][CH:40]=[CH:39][C:38]=1[N:43]1[CH2:48][CH2:47][NH:46][CH2:45][CH2:44]1.[I-].[K+]>CN(C=O)C>[F:19][C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][C:13]=1[C:10]1[C:9]2[C:20](=[O:21])[CH:5]([CH2:4][CH2:3][CH2:2][N:46]3[CH2:47][CH2:48][N:43]([C:38]4[CH:39]=[CH:40][CH:41]=[CH:42][N:37]=4)[CH2:44][CH2:45]3)[CH2:6][CH2:7][C:8]=2[O:12][N:11]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 5

HCID 4875Potassium IodideHCID 11430Potassium CarbonateHCID 81531DiisopropylethylamineHCID 944591-(2-Pyridyl)piperazineHCID 19786560HCID 19786560, Verbindung

Produkt 1

HCID 19786588HCID 19786588, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel

1
HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

To a solution consisting of 5-(3-chloropropyl)-3-(2-fluorophenyl)-6,7-dihydro -1,2-benzisoxazol-4(5H)-one (6.4 g) and DMF (100 ml) was added anhydrous potassium carbonate (1.4 g), diisopropylethyl amine (5.4 ml), 1-(2-pyridyl)piperazine (4.8 ml) and potassium iodide (0.4 g) at room temperature with stirring. The flask was flushed with nitrogen and warmed to 80° C. for 16 hours. Upon cooling to room temperature, water and ethyl acetate were added to the reaction mixture. The layers were separated and the aqueous phase was extracted three times with ethyl acetate. The combined organic layers were washed with water twice, then brine and dried (MgSO4). Filtration and concentration gave the crude product. Purification via preparative HIPLC (silica gel, 3% methanol) afforded 4.2 g of 6,7-dihydro-3-(2-fluorophenyl)-5-[3-(4-(2-pyridyl)-1-piperazinyl)-propyl]-1,2-benzisoxazol-4(5H)-one, as an oil which solidified upon standing. The product was recrystallized from ether, m.p. 94°- 96° C.

Aufarbeitung

  1. customThe flask was flushed with nitrogen
  2. temperatureUpon cooling to room temperature
  3. additionwater and ethyl acetate were added to the reaction mixture
  4. customThe layers were separated
  5. extractionthe aqueous phase was extracted three times with ethyl acetate
  6. washThe combined organic layers were washed with water twice
  7. dry with materialbrine and dried (MgSO4)
  8. filtrationFiltration and concentration
  9. customgave the crude product
  10. customPurification via preparative HIPLC (silica gel, 3% methanol)

Quellen und Nachweise

ORD-Eintrag
ord-6db7134688e24fb79674ab2a9aa62c7d
Quelldatensatz
uspto-grants-1993_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05256672

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