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Ozone → 3-((2S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-6-(2-hydroxyethyl)-1,3-oxazinan-2-one

HRID 403575
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 403575
[CH2:1]([C:4]1([C:17]2[CH:22]=[CH:21][C:20]([F:23])=[CH:19][CH:18]=2)[O:9][C:8](=[O:10])[N:7]([C@H:11]([C:13]([CH3:16])([CH3:15])[CH3:14])[CH3:12])[CH2:6][CH2:5]1)[CH:2]=C.[O:24]=[O+][O-].[BH4-].[Na+]>C(Cl)Cl>[CH3:14][C:13]([CH3:15])([CH3:16])[C@@H:11]([N:7]1[CH2:6][CH2:5][C:4]([C:17]2[CH:22]=[CH:21][C:20]([F:23])=[CH:19][CH:18]=2)([CH2:1][CH2:2][OH:24])[O:9][C:8]1=[O:10])[CH3:12]
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Komponenten

5

Edukt 3

HCID 24823OzoneHCID 4311764Sodium borohydrideHCID 584852576-allyl-3-((S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-1,3-oxazinan-2-one

Produkt 1

HCID 426422843-((2S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-6-(2-hydroxyethyl)-1,3-oxazinan-2-oneAusbeute 4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344
Dichloromethane
Lösungsmittel

Versuchsvorschrift

A solution of 6-allyl-3-((S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-1,3-oxazinan-2-one (80 mg, crude) in dry CH2Cl2 (5 mL) was treated with ozone at −78° C. until the mixture turned blue. The system was then flushed with oxygen to move excess ozone. NaBH4 (47 mg, 1.25 mmol) was added to the mixture in portions at rt. The mixture was stirred overnight at rt. The mixture was quenched with water and the layers were separated. The aqueous layer was extracted with CH2Cl2 (2×6 mL). The organic layer was combined, washed with brine, dried over anhydrous Na2SO4 and concentrated to give the crude product, which was purified by preparative TLC to give 3-((2S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-6-(2-hydroxyethyl)-1,3-oxazinan-2-one (5 mg, yield: 4%).

Aufarbeitung

  1. customThe system was then flushed with oxygen
  2. customThe mixture was quenched with water
  3. customthe layers were separated
  4. extractionThe aqueous layer was extracted with CH2Cl2 (2×6 mL)
  5. washwashed with brine
  6. dry with materialdried over anhydrous Na2SO4
  7. concentrationconcentrated
  8. customto give the crude product, which
  9. customwas purified by preparative TLC

Quellen und Nachweise

ORD-Eintrag
ord-1f4b476b71994edaab08bf405951cc11
Quelldatensatz
uspto-grants-2014_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08748444B2

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