反应详情

An alternative route to this product comprises heating a mixture of ethyl 6,7-dimethoxy-2-aminoquinoline-3-carboxylate (1.38 g., 5.0 mM), ethyl 1-carbethoxyformimidate hydrochloride (1.82 g., 10 mM), triethylamine (5.1 g., 5.0 mM), ethanol (50 ml.) and N,N-dimethylformamide (20 ml.) on a steam bath for 17 hours. The reaction mixture is cooled and the solid which separates filtered off, triturated with hot chloroform and then recrystallized from chloroform to give 0.170 g. of product. M.P. 273°-274° C. (dec.)

1. temperatureAn alternative route to this product comprises heating
2. temperatureThe reaction mixture is cooled
3. filtrationthe solid which separates filtered off
4. customtriturated with hot chloroform
5. customrecrystallized from chloroform
6. customto give 0.170 g