Ammonia → 3,5-Bis(trifluoromethyl)benzylamine

HRID 279489

Reaktionsgleichung

Reaktionsgleichung von HRID 279489
[F:1][C:2]([F:16])([F:15])[C:3]1[CH:4]=[C:5]([CH:8]=[C:9]([C:11]([F:14])([F:13])[F:12])[CH:10]=1)[C:6]#[N:7].N.[H][H]>[Pd].CO>[F:1][C:2]([F:15])([F:16])[C:3]1[CH:4]=[C:5]([CH:8]=[C:9]([C:11]([F:14])([F:12])[F:13])[CH:10]=1)[CH2:6][NH2:7]

Komponenten

6

Edukt 3

HCID 222AmmoniaHCID 967463,5-Bis(trifluoromethyl)benzonitrileHCID 178418361HCID 178418361, Verbindung2×

Produkt 1

HCID 5210993,5-Bis(trifluoromethyl)benzylamineAusbeute 85,1 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 23938PalladiumKatalysatorHCID 887MethanolLösungsmittel

Versuchsvorschrift

At first, a 1-liter autoclave equipped with a mechanical stirrer was charged with 200 g (0.84 mol) of 3,5-bis(trifluoromethyl)benzonitrile, 200 ml of methanol, and 6 g of a catalyst (i.e., a carbon powder (50% wet) carrying thereon 5% palladium), followed by introduction of 14 g of liquid ammonia and then introduction of hydrogen to have a pressure of 1 MPa. Then, the reaction mixture was stirred, while the reaction temperature was maintained at 20° C. and while hydrogen was gradually introduced into the autoclave in a manner to maintain the total pressure at 1 MPa. After conducting the reaction for 3 hr, the reaction was stopped, followed by removing the catalyst by filtration. As a result of analyzing the obtained reaction liquid by gas chromatography, 3,5-bis(trifluoromethyl)benzylamine was formed at a yield of 85.1%.

Aufarbeitung

  1. customAt first, a 1-liter autoclave equipped with a mechanical stirrer
  2. additionwas gradually introduced into the autoclave in a manner
  3. temperatureto maintain the total pressure at 1 MPa
  4. customthe reaction for 3 hr
  5. customby removing the catalyst
  6. filtrationby filtration
  7. customAs a result
  8. customthe obtained reaction liquid by gas chromatography

Quellen und Nachweise

ORD-Eintrag
ord-c1f621d96598450680a715430b72c700
Quelldatensatz
uspto-grants-2002_03
Patentnummer
US06362372B1

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