Reaktion #534486

Reaktionsgleichung

1-(4-bromophenyl)piperidin-4-one

NaBH4

→

title compound

1-(4-bromophenyl)piperidin-4-ol

Lösungsmittel

EtOH

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeThe reaction was quenched with sat. NH4Cl solution
2. 2
   Extraktionextracted with EtOAc
3. 3
   Trocknendried over MgSO4
4. 4
   Filtrationfiltered
5. 5
   Einengenconcentrated to dryness

Vorschrift

To a mixture of 1-(4-bromophenyl)piperidin-4-one (600 mg, 2.36 mmol) in EtOH (10 mL) was added NaBH4 (134 mg, 3.54 mmol) slowly at 0° C. The resulting mixture was stirred at rt for 1 h. The reaction was quenched with sat. NH4Cl solution, extracted with EtOAc, dried over MgSO4, filtered, and concentrated to dryness. The title compound was isolated by silica gel chromatography (EtOAc/hexanes, 2:3 to 3:2) as a yellow solid (606 mg, 100%). 1H NMR (400 MHz, CDCl3) δ 7.33 (d, J=8.9 Hz, 2H), 6.81 (d, J=8.9 Hz, 2H), 3.89-3.84 (m, 1H), 3.55-3.49 (m, 2H), 2.95-2.89 (m, 2H), 2.06-1.99 (m, 2H), 1.72-1.64 (m, 2H); MS ESI 255.9 [M+H]+, calcd for [C11H14BrNO+H]+ 256.03.

Quelle