Chloroacetaldehyde → 2-(3-methoxyphenyl)-1-phenyl-1H-imidazole

Beteiligte Stoffe

Reaktionsschritte

To a 500 mL round bottom flask was added 3-methoxy-N-phenylbenzimidamide (7.81 g, 34.5 mmol), 2-chloroacetaldehyde solution (50%, 9.4 mL, 69 mmol), sodium bicarbonate (5.80 g, 69 mmol), and 150 mL 2-propanol. The reaction mixture was heated at reflux for 3 h under nitrogen. The solvent was removed under vacuum and the residue dissolved in ethyl acetate. The ethyl acetate solution was washed with water, brine, dried over magnesium sulfate, filtered, and evaporated. The residue was purified by column chromatography eluting with 50% and 100% ethyl acetate/hexane to give pure product (6.52 g, 75%).

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