8-Phenyloctan-1-amine → N-(8-Phenyl-octyl)-3,5-bis-(m-chlorophenyl)4-(2-hydroxyethoxy)-benzamide

Temperatur

0 °C

To a flamed dried round bottom flask with 8-phenyloctyl amine (0.484 mL, 2.43 mmol) and THF (5 mL) cooled to 0° C. was added n-BuLi (0.972 mL, 2.5 M in hexane, 2.43 mmol) dropwise over a 5 min. period. The resulting solution was allowed to stir 5 min. and then warmed to room temperature for 30 min. This solution was then added dropwise to a solution of 3,5-bis-(m-chlorophenyl)-4-(2-hydroxyethoxy)benzoic acid ethyl ester (0.300 g, 0.696 mmol) in THF (15 mL) at −20° C. This final mixture was stirred at −20° C. for 15 min and then warmed to room temperature for 15 min. At this point, the reaction mixture was quenched with H2O (10 mL) and diluted with EtOAc (200 mL). The organic layer was washed with 1 N HCl (20 mL), sat. aq. NaHCO3 (20 mL), and brine (20 mL) and then dried (MgSO4). After concentration, the residue was purified by the Biotage Flash 40 (20 to 40% EtOAc/petroleum ether gradient) to afford the product (0.267 g, 65%) as a clear oil; 1H NMR (400 MHz, CDCl3) δ 1.09–1.48 (m, 9H), 1.48–1.72 (m, 4H), 2.58 (t, J=6.8 Hz, 2H), 3.30–3.35 (m, 2H), 3.35–3.41 (m, 2H), 3.46 (dd, J=6.8, 13.0 Hz, 2H), 6.07–6.18 (m, 1H), 7.11–7.19 (m, 3H), 7.21–7.31 (m, 2H), 7.35–7.44 (m, 4H), 7.44–7.57 (m, 2H), 7.63 (s, 2H), 7.77 (s, 2H); mass spectrum [(+) ESI], m/z 590 (M)+.

1. temperaturewarmed to room temperature for 30 min
2. temperaturewarmed to room temperature for 15 min
3. customAt this point, the reaction mixture was quenched with H2O (10 mL)
4. additiondiluted with EtOAc (200 mL)
5. washThe organic layer was washed with 1 N HCl (20 mL), sat. aq. NaHCO3 (20 mL), and brine (20 mL)
6. dry with materialdried (MgSO4)
7. concentrationAfter concentration
8. customthe residue was purified by the Biotage Flash 40 (20 to 40% EtOAc/petroleum ether gradient)

ORD-Eintrag

ord-2f9c5f4783ac42df947065b3d9b14cf3

Quelldatensatz

uspto-grants-2006_03

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US07008636B2