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Water → 3-{4-Chloro-2-fluoro-5-(3-butyn-2-yloxy)phenyl}-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine

HRID 849950
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 849950
[Cl:1][C:2]1[C:7]([OH:8])=[CH:6][C:5]([C:9]2[C:10](=[O:20])[N:11]([CH3:19])[C:12]([C:15]([F:18])([F:17])[F:16])=[CH:13][N:14]=2)=[C:4]([F:21])[CH:3]=1.C(=O)([O-])[O-].[K+].[K+].Br[CH:29]([CH3:32])[C:30]#[CH:31].O>CN(C)C=O>[Cl:1][C:2]1[C:7]([O:8][CH:30]([C:29]#[CH:32])[CH3:31])=[CH:6][C:5]([C:9]2[C:10](=[O:20])[N:11]([CH3:19])[C:12]([C:15]([F:18])([F:17])[F:16])=[CH:13][N:14]=2)=[C:4]([F:21])[CH:3]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 109424653-Bromo-1-butyneHCID 193655113-(4-Chloro-2-fluoro-5-hydroxyphenyl)-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine2×

Produkt 1

HCID 193655373-{4-Chloro-2-fluoro-5-(3-butyn-2-yloxy)phenyl}-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazineAusbeute 83 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

First, 100 mg of 3-(4-chloro-2-fluoro-5-hydroxyphenyl)-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine (present compound 1-61) was dissolved in 0.60 ml of N,N-dimethylformamide, to which 64 mg of potassium carbonate and 45 mg of 3-bromo-1-butyne were added, and the mixture was stirred at 70° C. 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 96 mg (yield, 83%) of 3-{4-chloro-2-fluoro-5-(3-butyn-2-yloxy)phenyl}-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine (present compound 1-157).

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-93f47211ab074f1aa1236e83d8062b6c
Quelldatensatz
uspto-grants-2000_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06015774

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