Reaktion #61993

Reaktionsgleichung

2-(3-piperidin-1-yl-propoxy)-benzaldehyde

4-chloroaniline

sodium triacetoxyborohydride

DCM

sodium hydroxide

→

ammonia DCM

Ausbeute 1.0%

title compound

(4-Chloro-phenyl)-[2-(3-piperidin-1-yl-propoxy)-benzyl]-amine

Lösungsmittel

acetic acid

Reaktionsbedingungen

Aufarbeitung

1. 1
   Extraktionextracted with DCM (3×10 mL)
2. 2
   TrocknenThe combined organic phases were dried (sodium sulfate)
3. 3
   Sonstigeevaporated

Vorschrift

A solution of 2-(3-piperidin-1-yl-propoxy)-benzaldehyde (266 mg), 4-chloroaniline (146 mg), and acetic acid (0.07 mL) in DCM (5 mL) was treated with sodium triacetoxyborohydride (400 mg). After 16 h, the resulting mixture was treated with 10% sodium hydroxide (6 mL) and extracted with DCM (3×10 mL). The combined organic phases were dried (sodium sulfate) and evaporated. Chromatography of the residue (1-5% 2 M methanolic ammonia/DCM) gave the title compound as a colorless oil (246 mg). 1H NMR (400 MHz, CDCl3): 7.28-7.20 (m, 2H), 7.09 (d, J=8.9 Hz, 2H), 6.89 (m, 2H), 6.55 (d, J=8.9 Hz, 2H), 4.30 (d, J=5.6, 2H), 4.18 (m, 1H), 4.05 (t, J=6.3 Hz, 2H), 2.47 (m, 2H), 2.37 (br, 4H), 1.96 (m, 2H), 1.62-1.56 (m, 4H), 1.49-1.42 (m, 2H).

Quelle