Methyl 3,3,3-trifluoro-2-oxopropanoate → 3-ethyl-alpha-hydroxy-2,5-dihydro-5-oxo-1-phenyl-alpha-trifluoromethyl-1H-pyrazole-4-acetic acid methyl ester

HRID 424907

Reaktionsgleichung

Reaktionsgleichung von HRID 424907
[CH2:1]([C:3]1[NH:4][N:5]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)[C:6](=[O:8])[CH:7]=1)[CH3:2].[F:15][C:16]([F:24])([F:23])[C:17](=[O:22])[C:18]([O:20][CH3:21])=[O:19]>C(Cl)(Cl)Cl>[CH3:21][O:20][C:18](=[O:19])[C:17]([OH:22])([C:16]([F:24])([F:23])[F:15])[C:7]1[C:6](=[O:8])[N:5]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)[NH:4][C:3]=1[CH2:1][CH3:2]

Komponenten

4

Edukt 2

HCID 2734931Methyl 3,3,3-trifluoro-2-oxopropanoateHCID 138848095-Ethyl-2-phenyl-1,2-dihydro-pyrazol-3-one

Produkt 1

HCID 441396903-ethyl-alpha-hydroxy-2,5-dihydro-5-oxo-1-phenyl-alpha-trifluoromethyl-1H-pyrazole-4-acetic acid methyl ester

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6212ChloroformLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

To a chloroform solution (5 ml) of 3-ethyl-1-phenyl-5-pyrazolone (94 mg, 0.5 mmol), methyl trifluoropyruvate (78 mg, 0.5 mmol) was added at room temperature and the mixture was stirred at 80° C. for 2 hours. After removing the solvent under reduced pressure, the title compound was obtained as a colorless solid (172 mg).

Aufarbeitung

  1. customAfter removing the solvent under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-dab3f99666d946a989f96cb0bade1cd3
Quelldatensatz
uspto-grants-2012_01
Patentnummer
US08106086B2

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