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Water → 3-{2,4-Dichloro-5-[(ethoxycarbonyl)methoxy]phenyl}-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine

HRID 849954
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 849954
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[C:5]([OH:9])=[CH:4][C:3]=1[C:10]1[C:11](=[O:21])[N:12]([CH3:20])[C:13]([C:16]([F:19])([F:18])[F:17])=[CH:14][N:15]=1.C(=O)([O-])[O-].[K+].[K+].Br[CH2:29][C:30]([O:32][CH2:33][CH3:34])=[O:31].O>CN(C)C=O>[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[C:5]([O:9][CH2:29][C:30]([O:32][CH2:33][CH3:34])=[O:31])=[CH:4][C:3]=1[C:10]1[C:11](=[O:21])[N:12]([CH3:20])[C:13]([C:16]([F:18])([F:17])[F:19])=[CH:14][N:15]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 962WaterHCID 7748Ethyl bromoacetateHCID 11430Potassium CarbonateHCID 193655303-(2,4-Dichloro-5-hydroxyphenyl)-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine2×

Produkt 1

HCID 193655343-{2,4-Dichloro-5-[(ethoxycarbonyl)methoxy]phenyl}-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazineAusbeute 96 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

First, 0.15 g of 3-(2,4-dichloro-5-hydroxyphenyl)-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine (present compound 1-357) was dissolved in 0.90 ml of N,N-dimethylformamide, to which 92 mg of potassium carbonate and 82 mg of ethyl bromoacetate were added, and the mixture was stirred at room temperature for 1 hour. After completion of the reaction, the reaction mixture was poured into water, followed by extraction with ethyl acetate. The organic layer was washed with saturated sodium chloride solution, dried with anhydrous magnesium sulfate, and concentrated. The residue was subjected to silica gel column chromatography, which afforded 179 mg (yield, 96%) of 3-{2,4-dichloro-5-[(ethoxycarbonyl)methoxy]phenyl}-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine (present compound 1-380).

Aufarbeitung

  1. additionwere added
  2. customAfter completion of the reaction
  3. extractionfollowed by extraction with ethyl acetate
  4. washThe organic layer was washed with saturated sodium chloride solution
  5. dry with materialdried with anhydrous magnesium sulfate
  6. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-b0bb22658fec43f7b29e4d1af5bf9072
Quelldatensatz
uspto-grants-2000_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06015774

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