Diethyl (ethoxymethylene)malonate → HCID 178469563, compound

Participants

Reaction Steps

4-Iodoaniline (8.60 g) and diethyl ethoxymethylenemalonate (7.90 mL) are heated at 130° C. for 1 hour. The reaction is cooled to room temperature and 60 mL diphenyl ether is added. The solution is heated at 250° C. for 1.5 hours with removal of ethanol by a Dean-Stark trap. The reaction is cooled to room temperature and the resulting solid is filtered, washed with hexanes, and dried to yield 11.20 g of ethyl 4-hydroxy-6-iodoquinoline-3-carboxylate. A mixture of this ester (0.58 g) and 4-chlorobenzylamine (4.0 mL) are heated at 180° C. for 1.5 hours. The reaction is cooled and poured into 50 mL diethyl ether. The resulting solid is filtered, triturated in ethyl acetate, and filtered again to give the desired product (0.50 g).

Provenance & Evidence