反应详情

3-Butyryl-4-chloro-8-methylquinoline (2.48 g, 10 mmol), 2,4-dichloroaniline (2.43 g, 15 mmol) and 1,4-dioxan (10 ml) were stirred at room temperature overnight then heated at reflux for 30 minutes. The hydrochloride salt was filtered off, converted to free base, triturated with ethanol and recrystallised from ethyl acetate to give 3-butyryl-4-(2,4-dichlorophenylamino)-8-methylquinoline (2.26 g), m.p. 169°-170°.

1. temperaturethen heated
2. temperatureat reflux for 30 minutes
3. filtrationThe hydrochloride salt was filtered off
4. customtriturated with ethanol
5. customrecrystallised from ethyl acetate