Acetic Acid → 2,3,5-Trifluoropyridine

HRID 1353112Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1353112
[F:1][C:2]1[C:7]([F:8])=[CH:6][C:5]([F:9])=[C:4](NN)[N:3]=1.C(O)(=O)C>S([O-])([O-])(=O)=O.[Cu+2].O>[F:1][C:2]1[C:7]([F:8])=[CH:6][C:5]([F:9])=[CH:4][N:3]=1

Komponenten

5

Edukt 2

HCID 176Acetic AcidHCID 21551824(3,5,6-Trifluoro-2-pyridyl)hydrazine

Produkt 1

HCID 27832872,3,5-TrifluoropyridineAusbeute 87,1 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 24462Copper SulfateKatalysatorHCID 962WaterLösungsmittel

Versuchsvorschrift

8.2 g of the compound obtained in Step 2 was added to a mixture of 320 ml of acetic acid and 120 ml of water, and 400 ml of 10% aqueous copper sulfate was added thereto. The resulting mixture was refluxed for 24 hours while removing water using a Dean-Stark trap, and the residue was dried to obtain 5.8 g (yield: 87.1%) of the title compound.

Aufarbeitung

  1. additionwas added
  2. temperatureThe resulting mixture was refluxed for 24 hours
  3. customwhile removing water using a Dean-Stark trap
  4. customthe residue was dried

Quellen und Nachweise

ORD-Eintrag
ord-b4f9b248009242ea8d9fc2788ae70a7d
Quelldatensatz
uspto-grants-2007_05
Patentnummer
US07220863B2

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