Sodium Cyanide → 4-Amino-1-t-butyl4-cyano-piperidine

HRID 1827819Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1827819
[C:1]([N:5]1[CH2:10][CH2:9][C:8](=O)[CH2:7][CH2:6]1)([CH3:4])([CH3:3])[CH3:2].[C-:12]#[N:13].[Na+].[NH4+:15].[Cl-]>N.CO>[NH2:15][C:8]1([C:12]#[N:13])[CH2:9][CH2:10][N:5]([C:1]([CH3:4])([CH3:3])[CH3:2])[CH2:6][CH2:7]1

Komponenten

6

Edukt 3

HCID 8929Sodium CyanideHCID 25517Ammonium ChlorideHCID 738401-tert-Butyl-4-piperidone

Produkt 1

HCID 220632024-Amino-1-t-butyl4-cyano-piperidine

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 222AmmoniaLösungsmittel2×HCID 887MethanolLösungsmittel2×

Versuchsvorschrift

1-t-Butyl-4-piperidone (1.3 g, 8.4 mmol, 1.0 equiv), NaCN (0.61 g, 12.6 mmol, 1.5 equiv), and NH4Cl (0.67 g, 12.6 mmol, 1.5 equiv) were combined in 34 mL of 2 M NH3 in MeOH. The mixture was refluxed for 2 h at which time an additional 34 mL of 2 M NH3 in MeOH was added followed by another 2 h at reflux. The mixture was cooled and filtered. The filtrate was concentrated in vacuo and the residue was triturated with CH2Cl2 and filtered again. The solution was concentrated to a thick red oil which was used without further purification; MS, m/z 182=M+1.

Aufarbeitung

  1. additionwas added
  2. temperatureat reflux
  3. temperatureThe mixture was cooled
  4. filtrationfiltered
  5. concentrationThe filtrate was concentrated in vacuo
  6. customthe residue was triturated with CH2Cl2
  7. filtrationfiltered again
  8. concentrationThe solution was concentrated to a thick red oil which
  9. customwas used without further purification

Quellen und Nachweise

ORD-Eintrag
ord-8193340c4d4442d0b2893d3d3d6bc172
Quelldatensatz
uspto-grants-2006_06
Patentnummer
US07056915B2

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