Potassium Bicarbonate → HCID 87618346, Verbindung

HRID 2111417Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2111417
[CH3:1][O:2][C:3](=[O:11])[CH:4]([CH3:10])[CH2:5][NH:6][CH2:7][CH:8]=[CH2:9].[Cl:12][C:13]1[N:18]=[C:17](Cl)[C:16]([N+:20]([O-:22])=[O:21])=[CH:15][N:14]=1.C(=O)(O)[O-].[K+]>C(OCC)(=O)C.O>[CH3:1][O:2][C:3](=[O:11])[CH:4]([CH3:10])[CH2:5][N:6]([CH2:7][CH:8]=[CH2:9])[C:17]1[C:16]([N+:20]([O-:22])=[O:21])=[CH:15][N:14]=[C:13]([Cl:12])[N:18]=1

Komponenten

6

Edukt 3

HCID 516893Potassium BicarbonateHCID 5212662,4-Dichloro-5-nitropyrimidineHCID 43398422Methyl 2-methyl-3-(2-propen-1-ylamino)propanoate

Produkt 1

HCID 87618346HCID 87618346, VerbindungAusbeute 81 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittel2×HCID 8857Ethyl AcetateLösungsmittel2×

Versuchsvorschrift

To a mixture of 1.71 g (0.010 mole) of (rac)-2-methyl-3-(2-propenylamino)-propanoic acid methyl ester, 1.94 g (0.010 mole) of 2,4-dichloro-5-nitro-pyrimidine, 50 mL of ethyl acetate and 25 mL of water was added 3.0 g (0.030 mole) of potassium bicarbonate. The mixture was stirred for 3 hours, and then diluted with 50 mL of ethyl acetate and 50 mL of water. The aqueous layer was extracted with 100 mL of ethyl acetate. The organic layers were washed with 100 mL of brine, combined, dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The residue was purified by silica gel chromatography, eluting with dichloromethane-ethyl acetate (100:0-97.5:2.5) to give 2.55 g of (rac)-3-[allyl-(2-chloro-5-nitro-pyrimidin-4-yl)-amino]-2-methyl-propanoic acid methyl ester (IV-65) as a pale yellow oil.

Aufarbeitung

  1. extractionThe aqueous layer was extracted with 100 mL of ethyl acetate
  2. washThe organic layers were washed with 100 mL of brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel chromatography
  7. washeluting with dichloromethane-ethyl acetate (100:0-97.5:2.5)

Quellen und Nachweise

ORD-Eintrag
ord-97a7cd7b1ccb4c58b2162e3b59a59c24
Quelldatensatz
uspto-grants-2009_04
Patentnummer
US07517873B2

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