反应详情

3-hexanoyl-4-chloro-8-methoxyquinoline (5 g, 0.071 mol) and o-toluidine (2 ml, 0.019 mol) were heated under reflux in 1,4-dioxan (50 ml) for 1 hour. The solvent was evaporated and the residue was taken up in dichloromethane, washed with 10% hydrochloric acid, water, sodium hydrogen carbonate solution and brine, dried and evaporated. Trituration with ethyl acetate/ether and recrystallisation from methanol-water gave 3-hexanoyl-4-(2-methylphenylamino)-8-methoxyquinoline as yellow needles (2.53 g, 45.3%), m.p. 94°-6° C.

1. customThe solvent was evaporated
2. washwashed with 10% hydrochloric acid, water, sodium hydrogen carbonate solution and brine
3. customdried
4. customevaporated
5. customTrituration with ethyl acetate/ether and recrystallisation from methanol-water