Ethyl Acetate → HCID 68784889, Verbindung

HRID 2383849

Reaktionsgleichung

Reaktionsgleichung von HRID 2383849
Cl[CH2:2][CH2:3][CH2:4][NH:5][C:6]([NH:8][C:9]1[CH:10]=[N:11][CH:12]=[CH:13][C:14]=1[CH3:15])=[O:7].[H-].[Na+].C(OC(=O)C)C>CN(C=O)C.C1COCC1>[CH3:15][C:14]1[CH:13]=[CH:12][N:11]=[CH:10][C:9]=1[N:8]1[CH2:2][CH2:3][CH2:4][NH:5][C:6]1=[O:7]

Komponenten

6

Edukt 3

HCID 8857Ethyl AcetateHCID 24758Sodium hydrideHCID 687869921-(3-Chloro-propyl)-3-(4-methyl-pyridin-3-yl)-urea

Produkt 1

HCID 68784889HCID 68784889, VerbindungAusbeute 96,5 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

1-(3-Chloro-propyl)-3-(4-methyl-pyridin-3-yl)-urea (I-130a: 2 g, 9.25 mmol) in dry DMF (15 mL) was added to a stirred mixture of sodium hydride (330 mg, 13.87 mmol) in THF (30 mL) at 0° C. The reaction was stirred at room temperature for 1 hour. The reaction was monitored by TLC (100% ethylacetate). The reaction mixture was quenched with MeOH at 0° C., concentrated under reduced pressure and partitioned between ice water and chloroform. The organic layer was washed with brine solution, dried over Na2SO4 and concentrated under reduced pressure to afford 1.7 g (96.5% yield) of 1-(4-methyl-pyridin-3-yl)-tetrahydro-pyrimidin-2-one.

Aufarbeitung

  1. customThe reaction mixture was quenched with MeOH at 0° C.
  2. concentrationconcentrated under reduced pressure
  3. custompartitioned between ice water and chloroform
  4. washThe organic layer was washed with brine solution
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-90e862bc69a344388e22a43af32a1fd1
Quelldatensatz
uspto-grants-2012_09
Patentnummer
US08263635B2

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