convergent strategy is reported for the construction of nitrogen-containing heterocycles from common substrates: 1,4-diketones and primary amines. Indeed, by just varying the substrates, the substituents, or the heating mode, it is possible to selectively synthesize indole, indolone (1,5,6,7-tetrahydroindol-4-one), or cinnoline (5,6,7,8-tetrahydrocinnoline) derivatives in moderate to excellent yields.
据报道,一种聚合策略可用于从常见底物上构建含氮杂环:1,4-二酮和
伯胺。实际上,只要改变底物,取代基或加热方式,就可以选择性地合成
吲哚,
吲哚酮(1,5,6,7-tetrahydroindol-4-one)或cinnoline(5,6,7, 8-四氢cinnoline)衍
生物,产率中等至优异。