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Sodium periodate → 2-((3R,5R,6S)-5-(3-chlorophenyl)-6-(4-chlorophenyl)-3-methyl-2-oxo-1-(pentan-3-yl)piperidin-3-yl)acetaldehyde

HRID 1048287
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1048287
[CH2:1]([C@@:4]1([CH3:30])[CH2:9][C@H:8]([C:10]2[CH:15]=[CH:14][CH:13]=[C:12]([Cl:16])[CH:11]=2)[C@@H:7]([C:17]2[CH:22]=[CH:21][C:20]([Cl:23])=[CH:19][CH:18]=2)[N:6]([CH:24]([CH2:27][CH3:28])[CH2:25][CH3:26])[C:5]1=[O:29])[CH:2]=C.I([O-])(=O)(=O)=[O:32].[Na+]>C1COCC1.O.[Os](=O)(=O)(=O)=O>[Cl:16][C:12]1[CH:11]=[C:10]([C@@H:8]2[C@@H:7]([C:17]3[CH:18]=[CH:19][C:20]([Cl:23])=[CH:21][CH:22]=3)[N:6]([CH:24]([CH2:27][CH3:28])[CH2:25][CH3:26])[C:5](=[O:29])[C@:4]([CH2:1][CH:2]=[O:32])([CH3:30])[CH2:9]2)[CH:15]=[CH:14][CH:13]=1
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Komponenten

6

Edukt 2

HCID 23667635Sodium periodateHCID 58573148(3S,5R,6S)-3-allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)-3-methyl-1-(pentan-3-yl)piperidin-2-one

Produkt 1

HCID 585731912-((3R,5R,6S)-5-(3-chlorophenyl)-6-(4-chlorophenyl)-3-methyl-2-oxo-1-(pentan-3-yl)piperidin-3-yl)acetaldehyde

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 30318Osmium TetroxideKatalysator
HCID 962
Water
Lösungsmittel
HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of 240 mg (0.54 mmol) of (3S,5R,6S)-3-allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)-3-methyl-1-(pentan-3-yl)piperidin-2-one (Example 71, Step E) in THF (8 mL) and water (2.8 mL) added a catalytic amount of osmium tetroxide. After 1.25 h, 323 mg (1.51 mmol) of sodium periodate were added. The resulting light brown slurry was stirred at room temperature for 18.5 h, and then filtered through a fritted funnel. The filtrate was partially concentrated under reduced pressure, then was diluted with water and extracted with ethyl acetate (2×). The combined organic layers were washed with saturated aqueous sodium thiosulfate and then saturated aqueous sodium chloride. The organic layer was dried over Na2SO4, filtered and the filtrate was concentrated. The crude title compound was used directly in the next step.

Aufarbeitung

  1. filtrationfiltered through a fritted funnel
  2. concentrationThe filtrate was partially concentrated under reduced pressure
  3. additionwas diluted with water
  4. extractionextracted with ethyl acetate (2×)
  5. washThe combined organic layers were washed with saturated aqueous sodium thiosulfate
  6. dry with materialThe organic layer was dried over Na2SO4
  7. filtrationfiltered
  8. concentrationthe filtrate was concentrated

Quellen und Nachweise

ORD-Eintrag
ord-11327ec20ac14c6a8b47295c2d1db43f
Quelldatensatz
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08569341B2

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