Sodium periodate → HCID 22663501, Verbindung

HRID 392639Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 392639
[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([O:11][CH2:12][C@@H:13]2[O:18][C:17]3[C:19]([CH:28]=CC)=[C:20]([NH:23][C:24]([O:26][CH3:27])=[O:25])[CH:21]=[CH:22][C:16]=3[O:15][CH2:14]2)(=[O:10])=[O:9])=[CH:4][CH:3]=1.I([O-])(=O)(=O)=[O:32].[Na+]>O1CCCC1.O.[Os](=O)(=O)(=O)=O>[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([O:11][CH2:12][CH:13]2[O:18][C:17]3[C:19]([CH:28]=[O:32])=[C:20]([NH:23][C:24]([O:26][CH3:27])=[O:25])[CH:21]=[CH:22][C:16]=3[O:15][CH2:14]2)(=[O:9])=[O:10])=[CH:4][CH:3]=1

Komponenten

6

Edukt 2

HCID 23667635Sodium periodateHCID 86587691HCID 86587691, Verbindung

Produkt 1

HCID 22663501HCID 22663501, VerbindungAusbeute 97 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 30318Osmium TetroxideKatalysatorHCID 962WaterLösungsmittel2×HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of {(2R)-7-[(methoxycarbonyl)amino]-8-[1-propenyl]-2,3-dihydro-1,4-benzodioxin-2-yl}methyl 4-methylbenzenesulfonate (5.12 g, 11.8 mmole) in tetrahydrofuran (400 mL) was added 2.42 mL of 4% aqueous osmium tetroxide (0.39 mmole). After 0.5 hour, sodium periodate (12.6 g, 59.1 mmole) in water (100 mL) was added dropwise over a period of 1 hour. The heterogeneous solution was stirred under nitrogen at room temperature overnight. The mixture was diluted with water and extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate, filtered and concentrated in vacuum to yield the (R)-enantiomer of the title compound as a light beige solid (4.80 g, 97%).

Aufarbeitung

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with brine
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuum

Quellen und Nachweise

ORD-Eintrag
ord-a55486c5e1994740bddab05209a28f0f
Quelldatensatz
uspto-grants-2004_10
Patentnummer
US06800648B2

Notizen zur Reaktion

Wird geladen…