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Water → {4-[2-(2,4-Dichloro-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-2-oxo-2H-pyridin-1-yl}-acetic acid methyl ester

HRID 1097915
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1097915
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[CH:9]([CH3:23])[C:10]([C:16]1[CH:21]=[CH:20][NH:19][C:18](=[O:22])[CH:17]=1)([OH:15])[C:11]([F:14])([F:13])[F:12].CC([O-])(C)C.[K+].[CH3:30][O:31][C:32](=[O:35])[CH2:33]Br.O>C1COCC1>[CH3:30][O:31][C:32](=[O:35])[CH2:33][N:19]1[CH:20]=[CH:21][C:16]([C:10]([OH:15])([C:11]([F:14])([F:13])[F:12])[CH:9]([C:3]2[CH:4]=[CH:5][C:6]([Cl:8])=[CH:7][C:2]=2[Cl:1])[CH3:23])=[CH:17][C:18]1=[O:22]
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Komponenten

6

Edukt 4

HCID 962WaterHCID 60984Methyl bromoacetateHCID 23665647Potassium tert-butoxideHCID 574212564-[2-(2,4-Dichloro-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-1H-pyridin-2-one

Produkt 1

HCID 25254607{4-[2-(2,4-Dichloro-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-2-oxo-2H-pyridin-1-yl}-acetic acid methyl ester

Reagenzien, Katalysatoren, Lösungsmittel

1
HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

4-[2-(2,4-Dichloro-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-1H-pyridin-2-one (Example 119, 100 mg) was dissolved in THF (10 mL), and treated with t-BuOK (34 mg). After 5 minutes stirring, bromo-acetic acid methyl ester (0.03 mL) was added and the reaction mixture was stirred at 55° C. for 17 h. The reaction mixture was then cooled down to r.t., poured into water (50 mL) and extracted twice with ethyl acetate. The combined organic phases were washed with brine, dried over MgSO4 and concentrated in vacuo. The residue was purified by flash chromatography (10 g silica gel, ethyl acetate/heptane 30:70) to give the title compound as colorless waxy solid (49 mg). MS (m/e)=438.1 (MH+).

Aufarbeitung

  1. stirringthe reaction mixture was stirred at 55° C. for 17 h
  2. extractionextracted twice with ethyl acetate
  3. washThe combined organic phases were washed with brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by flash chromatography (10 g silica gel, ethyl acetate/heptane 30:70)

Quellen und Nachweise

ORD-Eintrag
ord-55d684ff185b4549affa88f888de8e08
Quelldatensatz
uspto-grants-2012_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08143280B2

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