反应详情

110 g of 3,7-dichloro-8-cyanoquinoline in 500 ml of dimethylformamide were refluxed for 20 hours, the solution was cooled, an amount of water corresponding to half the volume of the solution was added, and the precipitated solid was filtered off under suction. 100 g of 3-chloro-8-cyano-7-dimethylaminoquinoline of melting point 174° C. were obtained. Yield: 87% of theory.

1. temperaturethe solution was cooled
2. filtrationthe precipitated solid was filtered off under suction