Water → 1-Benzyloxycarbonylmethyl-2,4-dioxopyrimidine

HRID 23555

Reaktionsgleichung

Reaktionsgleichung von HRID 23555
[O:1]=[C:2]1[NH:7][C:6](=[O:8])[CH:5]=[CH:4][NH:3]1.Br[CH2:10][C:11]([O:13][CH2:14][C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1)=[O:12].C(=O)([O-])[O-].[K+].[K+].O>CN(C=O)C>[O:1]=[C:2]1[NH:7][C:6](=[O:8])[CH:5]=[CH:4][N:3]1[CH2:10][C:11]([O:13][CH2:14][C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1)=[O:12]

Komponenten

6

Edukt 4

HCID 962WaterHCID 1174UracilHCID 11430Potassium CarbonateHCID 62576Benzyl bromoacetate

Produkt 1

HCID 226011191-Benzyloxycarbonylmethyl-2,4-dioxopyrimidineAusbeute 60,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of 2,4-dioxopyrimidine (1.0 g) in anhydrous DMF (10 ml) were added benzyl bromoacetate (2.5 g) and potassium carbonate (2.5 g). After stirring at room temperature for 15 hours, the reaction mixture was poured into water and extracted with ethyl acetate. The organic phase was washed with brine and then dried with magnesium sulfate, filtered and evaporated under reduced pressure. The precipitate was washed with diethyl ether to give phenylmethyl 2-(2,4-dioxo-1,3-dihydropyrimidinyl)acetate (1.4 g) as a colorless solid.

Aufarbeitung

  1. extractionextracted with ethyl acetate
  2. washThe organic phase was washed with brine
  3. dry with materialdried with magnesium sulfate
  4. filtrationfiltered
  5. customevaporated under reduced pressure
  6. washThe precipitate was washed with diethyl ether

Quellen und Nachweise

ORD-Eintrag
ord-0c6dbf2897d04754b15dfbc2d2793da6
Quelldatensatz
uspto-grants-2005_02
Patentnummer
US06852744B2

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