1-(2-Methoxyethoxy)-4-nitrobenzene → 4-(2-Methoxyethoxy)aniline

関与物質

反応手順

A mixture of 1-(2-methoxyethoxy)-4-nitrobenzene (0.724 g, 3.67 mmol) and 10% Pd/C (Aldrich) (0.201 g, 1.89 mmol) in EtOH (10 mL) was evacuated under vacuum and refilled with hydrogen (4 times). The mixture was hydrogenated under balloon pressure at rt for 1.5 h. The reaction mixture was filtered through a pad of Celite® (diatomaceous earth) (eluent:EtOH) and concentrated. The crude product was purified by silica gel chromatography (25 g, eluent: EtOAc in hexanes 0%-60%) to give 4-(2-methoxyethoxy)aniline (0.548 g, 89% yield) as a clear oil. 1H NMR (400 MHz, CDCl3) δ 6.73-6.82 (m, 2H); 6.58-6.68 (m, 2H); 4.01-4.08 (m, 2H); 3.67-3.76 (m, 2H); 3.29-3.52 (m, 5H). m/z (ESI, +ve ion) 168.1 (M+H)+.

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