Anionic [4+3] heteroannulation of 2-azidoacrylates: a modular synthesis of 2-benzazepin-1-ones
作者:Bidyut Kumar Dinda、Amit Kumar Jana、Dipakranjan Mal
DOI:10.1039/c2cc30279a
日期:——
2-Azidoacrylates undergo [4+3] annulation with phthalides under anionic conditions at low temperatures to furnish 5-hydroxy-2-benzazepinones, the formation of which represents a new concept for the construction of azepines as well as a new reactivity of 2-azidoacrylates.
2-叠氮丙烯酸酯在低温的阴离子条件下与邻苯二甲酸酯发生[4+3]环化反应,生成5-羟基-2-苯并氮杂四环酮,其形成代表了叠氮氮杂环的构建新概念以及2-叠氮丙烯酸酯的新反应性。