enolates derived from the ketones intramolecularly reacted with the nitro group to form a variety of nitrones. Additional experimental results, including the unexpected isolation of N-hydroxyindolinone as a byproduct, led to a proposed reaction mechanism, occurring via an α-hydroxyketone. The resultant nitrones underwent inter- and intramolecular 1,3-dipolar cycloaddition with olefins to afford polycyclic
在60°C下,用
氢氧化钠的
甲醇溶液处理在α位具有2-
硝基苯基的酮。在这些条件下,源自酮的烯醇化物在分子内与硝基反应形成各种硝酮。其他实验结果,包括意外分离出副产物N-羟基
吲哚酮,导致了通过α-羟基酮发生的拟议反应机理。所得的硝基酮与烯烃进行分子间和分子内的1,3-偶极环加成反应,得到多环
异恶唑烷。