Reaktion #74281

Reaktionsgleichung

1-benzyl-4-(4-(pyridin-4-yl)piperazin-1-yl)piperidine-4-carbonitrile

H2SO4

LAH

→

(1-Benzyl-4-(4-(pyridin-4-yl)piperazin-1-yl)piperidin-4-yl)methanamine

Ausbeute 85.0%

Lösungsmittel

THF

THF

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigethe resulting reaction mixture
2. 2
   Temperaturwas heated to 50° C. for 16 h
3. 3
   SonstigeThe reaction was quenched with THF/H2O solution
4. 4
   Filtrationfiltered
5. 5
   Waschenthe solid residue washed with excess ethyl acetate
6. 6
   Waschenwash
7. 7
   Trocknendried over sodium sulfate
8. 8
   Sonstigethe solvent was removed under reduced pressure
9. 9
   SonstigeThe resulting crude product was used for the next step without further purification

Vorschrift

H2SO4 (1.5 equiv.) was added to a suspension of LAH (3 equiv.) in THF (32 ml) at 0° C. and the mixture was stirred at room temperature for 0.5 h. A solution of 1-benzyl-4-(4-(pyridin-4-yl)piperazin-1-yl)piperidine-4-carbonitrile (5.54 mmol, 1 equiv.) in THF was added under cooled conditions and the resulting reaction mixture was heated to 50° C. for 16 h. The reaction was quenched with THF/H2O solution, filtered and the solid residue washed with excess ethyl acetate. The organic layer was given a brine wash, dried over sodium sulfate and the solvent was removed under reduced pressure. The resulting crude product was used for the next step without further purification. Yield: 85%.

Quelle