Hydrochloric Acid → 4,4,4-Trifluoro-1-(3-fluoro-4-(1,3-thiazol-4-yl)phenyl)-1,3-butanedione

HRID 394897Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 394897
[F:1][C:2]1[CH:3]=[C:4]([C:13](=[O:15])[CH3:14])[CH:5]=[CH:6][C:7]=1[C:8]1[N:9]=[CH:10][S:11][CH:12]=1.[F:16][C:17]([F:24])([F:23])[C:18](OCC)=[O:19].C[O-].[Na+].Cl>C(OC)(C)(C)C>[F:16][C:17]([F:24])([F:23])[C:18](=[O:19])[CH2:14][C:13]([C:4]1[CH:5]=[CH:6][C:7]([C:8]2[N:9]=[CH:10][S:11][CH:12]=2)=[C:2]([F:1])[CH:3]=1)=[O:15]

Komponenten

6

Edukt 4

HCID 313Hydrochloric AcidHCID 9794Ethyl trifluoroacetateHCID 10942334Sodium MethoxideHCID 223138303-Fluoro-4-(1,3-thiazol-4-yl)phenyl-1-ethanone

Produkt 1

HCID 223138014,4,4-Trifluoro-1-(3-fluoro-4-(1,3-thiazol-4-yl)phenyl)-1,3-butanedioneAusbeute 99 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 15413tert-Butyl methyl etherLösungsmittel

Versuchsvorschrift

To a stirred solution of 1-[3-fluoro-4-(1,3-thiazol-4-yl)phenyl]-1-ethanone (666 mg, 3.01 mmol), ethyl trifluoroacetate (470 mg, 3.31 mmol) in t-butylmethylether (40 ml) was added sodium methoxide (28 wt.% solution in methanol; 0.8 ml, 3.6 mmol) over 5 minutes, and the mixture was stirred for 20 hours. The mixture was made neutral by addition of 2N HCl, and the whole was extracted with ethyl acetate. The organic layer was washed with brine, dried over MgSO4, and concentrated in vacuo. The residue was used for next reaction without further purification. (1.06 g, 99% yield).

Aufarbeitung

  1. extractionthe whole was extracted with ethyl acetate
  2. washThe organic layer was washed with brine
  3. dry with materialdried over MgSO4
  4. concentrationconcentrated in vacuo
  5. customThe residue was used for next reaction without further purification

Quellen und Nachweise

ORD-Eintrag
ord-5fd242ef656d47e7b163d9798f9c5395
Quelldatensatz
uspto-grants-2003_08
Patentnummer
US06603008B1

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