Potassium Carbonate → 1-[4-chloro-5-(4-cyanophenoxy)-2-fluorophenyl]-4-difluoromethyl-4,5-dihydro-3-methyl-1,2,4-triazol-5(1H)-one

HRID 1090987Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1090987
[Cl:1][C:2]1[C:7]([OH:8])=[CH:6][C:5]([N:9]2[C:13](=[O:14])[N:12]([CH:15]([F:17])[F:16])[C:11]([CH3:18])=[N:10]2)=[C:4]([F:19])[CH:3]=1.C(=O)([O-])[O-].[K+].[K+].F[C:27]1[CH:34]=[CH:33][C:30]([C:31]#[N:32])=[CH:29][CH:28]=1>CN(C)C=O>[Cl:1][C:2]1[C:7]([O:8][C:27]2[CH:34]=[CH:33][C:30]([C:31]#[N:32])=[CH:29][CH:28]=2)=[CH:6][C:5]([N:9]2[C:13](=[O:14])[N:12]([CH:15]([F:16])[F:17])[C:11]([CH3:18])=[N:10]2)=[C:4]([F:19])[CH:3]=1

Komponenten

5

Edukt 3

HCID 11430Potassium CarbonateHCID 145174-FluorobenzonitrileHCID 137694562-(4-Chloro-2-fluoro-5-hydroxyphenyl)-4-(difluoromethyl)-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one

Produkt 1

HCID 199122151-[4-chloro-5-(4-cyanophenoxy)-2-fluorophenyl]-4-difluoromethyl-4,5-dihydro-3-methyl-1,2,4-triazol-5(1H)-oneAusbeute 65,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

To a stirred solution of 5.0 g (0.017 mole) of 1-(4-chloro-2-fluoro-5-hydroxyphenyl)-4-difluoromethyl-4,5-dihydro-3-methyl-1,2,4-triazol-5(1H)-one in 150 mL of N,N-dimethylformamide was added 2.8 g (0.020 mole) of potassium carbonate. The resultant mixture was stirred for ten minutes, and 2.1 g (0.017 mole) of 4-fluorobenzonitrile was added. The mixture was stirred and heated at 120° C. for approximately 18 hours. The solvent was removed from the mixture by distillation under reduced pressure leaving a residue which was partitioned between diethyl ether and water. The organic phase was separated, dried over anhydrous magnesium sulfate, and filtered. The filtrate was evaporated under reduced pressure to give 4.4 g of 1-[4-chloro-5-(4-cyanophenoxy)-2-fluorophenyl]-4-difluoromethyl -4,5-dihydro-3-methyl-1,2,4-triazol-5(1H)-one as a solid.

Aufarbeitung

  1. customThe solvent was removed from the mixture by distillation under reduced pressure
  2. customleaving a residue which
  3. customwas partitioned between diethyl ether and water
  4. customThe organic phase was separated
  5. dry with materialdried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. customThe filtrate was evaporated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-aec1f7f720484c8bb866d110ebb450e5
Quelldatensatz
uspto-grants-1992_01
Patentnummer
US05084085

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