反应详情

Conc. sulfuric acid was added to a mixture of 2-amino-4,5,3',4'-tetramethoxybenzophenone, ethyl acetoacetate and acetic acid. The mixture was treated according to the same manner as that described in Example 1 to give ethyl 6,7-dimethoxy-4-(3,4-dimethoxyphenyl)-2-methylquinoline-3-carboxylate (83%) which was then recrystallized from ethanol.

1. additionThe mixture was treated