N-Methylpropylamine → Methyl 3-iodo-5-{[methyl(propyl)amino]carbonyl}benzoate

Beteiligte Stoffe

Reaktionsschritte

Mix 5-iodo-isophthalic acid monomethyl ester (3.6 g), N-methyl propyl amine (1.2 mL, 11.8 mmol), 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (2.3 g, 11.8 mmol), and 1-hydroxybenzotriazole hydrate (1.6 g, 11.8 mmol) in dichloromethane (40 mL) and stir at room temperature for 4 h. Dilute with dichloromethane (20 mL), wash with water, 5% aqueous ammonium chloride solution, 5% aqueous sodium bicarbonate solution. Dry (sodium sulfate), concentrate and purify (silica gel chromatography, eluting with ethyl acetate and hexanes) to give the title compound (3.2 g, 74%).

Herkunft & Nachweise