Easily obtained amino derivatives of quinoline-5,8-quinone (1 and 2) and 4-methyl-(1H)2,5,8-quinolinetrione (3) react with β-dielectrophiles, affording aminoalkylidenemalonates in a convenient procedure. These compounds cyclise thermally to 1,5-diaza-(1H)4,9,10-anthracenetriones (1 0 and 1 9), 1,8-diaza-(1H)4,9,10-anthracenetriones (1 1 and 2 0) and 1,5-diaza-(1H, 5H)2,8,9,10-anthracene-tetraones (1
容易获得的
喹啉5,8-醌(1和2)和4-甲基-(1 H)2,5,8-
喹啉三酮(3)的
氨基衍
生物与β-二亲电子试剂反应,以方便的程序得到
氨基烷基亚
甲基丙二酸酯。这些化合物热环化为1,5-二氮杂-(1 H)4,9,10-
蒽酮(1 0和1 9),1,8-二氮杂-(1 H)4,9,10-
蒽酮(1 1)和2 0)和1,5-二氮杂-(1 H,5 H)2,8,9,10-
蒽-四酮(1 2和2 1)。当应用于芳族前体时,该策略不太方便。β-氧代
苯胺的克诺尔环化在两个系统中均失败。