1H-1,2,4-Triazole → 4-(4-Chlorophenyl)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)butan-2-one

HRID 568314Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 568314
Br[CH2:2][C:3](=[O:15])[C:4]([CH3:14])([CH3:13])[CH2:5][C:6]1[CH:11]=[CH:10][C:9]([Cl:12])=[CH:8][CH:7]=1.[NH:16]1[CH:20]=[N:19][CH:18]=[N:17]1.C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[Cl:12][C:9]1[CH:10]=[CH:11][C:6]([CH2:5][C:4]([CH3:14])([CH3:13])[C:3](=[O:15])[CH2:2][N:16]2[CH:20]=[N:19][CH:18]=[N:17]2)=[CH:7][CH:8]=1

Komponenten

5

Edukt 3

HCID 92571H-1,2,4-TriazoleHCID 11430Potassium CarbonateHCID 132865251-Bromo-4-(4-chlorophenyl)-3,3-dimethylbutan-2-one

Produkt 1

HCID 132865264-(4-Chlorophenyl)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)butan-2-oneAusbeute 356,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 180AcetoneLösungsmittel

Versuchsvorschrift

37 g (0.13 mol) of 4-bromo-1-(4-chlorophenyl)-2,2-dimethyl-3-butanone, 13.3 g (0.019 mol) of 1,2,4-triazole and 53.8 g (0.39 mol) of potassium carbonate are heated under reflux in 300 ml of acetone for 8 hours. The mixture is allowed to cool, the inorganic residue is filtered off with suction and the filtrate is concentrated. The residue is taken up in chloroform and the mixture is washed with water, dried over sodium sulphate and concentrated. The residue is stirred with diethyl ether, filtered off with suction and dried at 50° C. in vacuo. 18.8 g (52% of theory) of 1-(4-chlorophenyl)-2,2-dimethyl-4-(1,2,4-triazol-1-yl)-3-butanone of melting point 127° C. are obtained. ##STR18##

Aufarbeitung

  1. temperatureto cool
  2. filtrationthe inorganic residue is filtered off with suction
  3. concentrationthe filtrate is concentrated
  4. washthe mixture is washed with water
  5. dry with materialdried over sodium sulphate
  6. concentrationconcentrated
  7. filtrationfiltered off with suction
  8. customdried at 50° C. in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-2c995d242f9b4e77827f94366a679aff
Quelldatensatz
uspto-grants-1988_03
Patentnummer
US04728356

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