Triacetoxyperiodinane → HCID 57786225, Verbindung

HRID 1399233Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1399233
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:20]=[CH:19][C:18]([Br:21])=[CH:17][C:16]=4[CH3:22])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH2:23][OH:24])=[CH:4][CH:3]=1.CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O>CS(C)=O.C(OCC)(=O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH:23]=[O:24])=[C:6]2[C:10]=1[N:9]=[C:8]1[N:11]([C:15]3[CH:20]=[CH:19][C:18]([Br:21])=[CH:17][C:16]=3[CH3:22])[CH2:12][CH2:13][CH2:14][N:7]21

Komponenten

5

Edukt 2

HCID 159087Triacetoxyperiodinane3×HCID 57786365HCID 57786365, Verbindung

Produkt 1

HCID 57786225HCID 57786225, VerbindungAusbeute 97,4 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 679Dimethyl SulfoxideLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

To a solution of [9-chloro-1-(4-bromo-2-methylphenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]methanol (4.68 g, 11.5 mmol) in dimethylsulfoxide (80 mL) was added Dess-Martin reagent (5.37 g, 12.7 mmol), and the mixture was stirred at room temperature for 1 h. To the reaction mixture was added Dess-Martin reagent (0.49 g, 1.15 mmol), and the mixture was stirred at room temperature for 1 h. To the reaction mixture was added Dess-Martin reagent (1.46 g, 3.45 mmol), and the mixture was stirred at room temperature for 1 h. The reaction mixture diluted with ethyl acetate, and the mixture was quenched by saturated aqueous sodium hydrogen carbonate. The solid was removed by filtration. The filtrate was extracted with ethyl acetate. The combined organic layer was washed with brine, dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo to give the title compound as a pale yellow powder (4.54 g, 11.2 mmol, 97%).

Aufarbeitung

  1. stirringthe mixture was stirred at room temperature for 1 h
  2. stirringthe mixture was stirred at room temperature for 1 h
  3. customthe mixture was quenched by saturated aqueous sodium hydrogen carbonate
  4. customThe solid was removed by filtration
  5. extractionThe filtrate was extracted with ethyl acetate
  6. washThe combined organic layer was washed with brine
  7. dry with materialdried over anhydrous magnesium sulfate
  8. filtrationfiltered
  9. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-ffe69b5027e74b7dad5535d608d07b07
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08901141B2

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