StartseiteMCPWorkbenchSkills
StartseiteWorkbenchBenachrichtigungenMein Bereich
llms.txt · MCP-AnleitungDatenschutz · Nutzungsbedingungen · Supportv1.8.0
  1. Startseite
  2. /Reaktion

Ethyl 4-fluoro-gamma,zeta-dioxobenzeneheptanoate → Ethyl 4-(methylsulfonyl)-gamma,zeta-dioxobenzeneheptanoate

HRID 1585073
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1585073
F[C:2]1[CH:7]=[CH:6][C:5]([C:8](=[O:20])[CH2:9][CH2:10][C:11](=[O:19])[CH2:12][CH2:13][C:14]([O:16][CH2:17][CH3:18])=[O:15])=[CH:4][CH:3]=1.[Na].[CH3:22][S:23]([OH:25])=[O:24]>CN(C=O)C>[CH3:22][S:23]([C:2]1[CH:7]=[CH:6][C:5]([C:8](=[O:20])[CH2:9][CH2:10][C:11](=[O:19])[CH2:12][CH2:13][C:14]([O:16][CH2:17][CH3:18])=[O:15])=[CH:4][CH:3]=1)(=[O:25])=[O:24]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

4

Edukt 2

HCID 10564686Ethyl 4-fluoro-gamma,zeta-dioxobenzeneheptanoateHCID 16212824Methanesulfinic acid sodium

Produkt 1

HCID 10807067Ethyl 4-(methylsulfonyl)-gamma,zeta-dioxobenzeneheptanoateAusbeute 26 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
82.5 °C

Versuchsvorschrift

To a solution of ethyl 4-fluoro-γ,ζ-dioxobenzeneheptanoate (Step 2) (870 mg, 3.1 mmol) in DMF (25 ml), methanesulfinic acid sodium (1.27 g, 12.4 mmol) was added. The reaction mixture was heated at 130-35° C. for 30 hours. After cooling, the solvent was removed under reduced pressure and the reaction mixture was diluted with water. The material was extracted with ethyl acetate and washed with brine. After drying (MgSO4), filtration and concentration, the crude dark brown solid (840 mg) was purified by chromatography (silica gel, hexane/ethyl acetate, 1/1) to give the sulfone (270 mg, 26%) as a white solid: mp (DSC) 97° C. Anal Calc'd. for C16H20SO6 : C, 56.46; H, 5.92; S, 9.42. Found: C, 56.56; H, 6.10; S, 9.62.

Aufarbeitung

  1. temperatureAfter cooling
  2. customthe solvent was removed under reduced pressure
  3. additionthe reaction mixture was diluted with water
  4. extractionThe material was extracted with ethyl acetate
  5. washwashed with brine
  6. customAfter drying
  7. filtration(MgSO4), filtration and concentration
  8. customthe crude dark brown solid (840 mg) was purified by chromatography (silica gel, hexane/ethyl acetate, 1/1)

Quellen und Nachweise

ORD-Eintrag
ord-aad1715692a7446da1a53e642a7d7ea1
Quelldatensatz
uspto-grants-1999_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05935990

Notizen zur Reaktion

Wird geladen…

Auf dieser SeiteKomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion