Sodium Iodide → Morpholine, 4-(2-(2-nitro-1H-imidazol-1-yl)ethyl)-

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

2-Nitroimidazole (0.55 g, 4.86 mmol), 4-(2-chloroethyl)morpholine hydrochloride (0.90 g, 4.86 mmol), sodium iodide (0.18 g, 1.21 mmol) and sodium methoxide (0.59 g, 10.0 mmol) are dissolved in DMF (25 mL). The mixture is heated at 100° C. under a nitrogen atmosphere for 14 h. The reaction mixture is cooled and solvent removed in vacuo. The residue is partitioned between ethyl acetate (30 mL) and sat. NaHCO3 (aq.) (30 mL). The aqueous layer is extracted with ethyl acetate (4×30 mL). The organic layers are combined, dried (MgSO4) and solvent removed in vacuo. The solid residue is purified by column chromatography, eluting with 3% methanol in dichloromethane to give a yellow oil (638 mg, 58%). 1H-NMR (400 MHz, d6-DMSO) =2.39-2.45 (m, 4H), 2.66 (t, 2H, J=6 Hz), 3.52 (t, 4H, J=4.8 Hz), 4.52-4.54 (t, 2H, J=6 Hz), 7.19 (s, 1H, Har), 7.68 (s, 1H, Har).

Herkunft & Nachweise