Water → HCID 23076449, Verbindung

HRID 2221664Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2221664
[CH2:1]([C:3]1[S:4][CH:5]=[C:6]([CH2:8]P(=O)(OCC)OCC)[N:7]=1)[CH3:2].[H-].[Na+].[CH3:19][O:20][CH2:21][O:22][C:23]1[C:27]([CH:28]=O)=[CH:26][N:25]([C:30]2[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=2)[N:24]=1.O>O1CCCC1>[CH2:1]([C:3]1[S:4][CH:5]=[C:6](/[CH:8]=[CH:28]/[C:27]2[C:23]([O:22][CH2:21][O:20][CH3:19])=[N:24][N:25]([C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=3)[CH:26]=2)[N:7]=1)[CH3:2]

Komponenten

6

Edukt 4

HCID 962WaterHCID 24758Sodium hydrideHCID 230765133-(methoxymethoxy)-1-phenyl-1H-pyrazole-4-carbaldehydeHCID 85954626Phosphonic acid, [(2-ethyl-4-thiazolyl)methyl]-, diethyl ester

Produkt 1

HCID 23076449HCID 23076449, VerbindungAusbeute 74,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of diethyl [(2-ethyl-1,3-thiazol-4-yl)methyl]phosphonate (4.64 g) in tetrahydrofuran (75 mL) was added sodium hydride (60% in oil, 0.96 g) at room temperature, and the mixture was stirred for 30 min. 3-(Methoxymethoxy)-1-phenyl-1H-pyrazole-4-carbaldehyde (6.32 g) was added to the reaction mixture, and the mixture was heated under reflux for 15 hrs. Water was poured into the reaction mixture, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography and eluted with ethyl acetate-hexane (1:9-1:1, v/v) to give 2-ethyl-4-{(E)-2-[3-(methoxymethoxy)-1-phenyl-1H-pyrazol-4-yl]ethenyl}-1,3-thiazole as a pale-yellow oil (4.49 g, yield 66%).

Aufarbeitung

  1. temperaturethe mixture was heated
  2. temperatureunder reflux for 15 hrs
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe ethyl acetate layer was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated
  7. washeluted with ethyl acetate-hexane (1:9-1:1

Quellen und Nachweise

ORD-Eintrag
ord-245ffa23a67c49baa0cadc06efe7c81b
Quelldatensatz
uspto-grants-2008_05
Patentnummer
US07368578B2

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