作者:Tsung-Hsien Sun、Chi-Wi Ong
DOI:10.1002/jccs.200700225
日期:2007.12
The (2E,4E)- and (2E,4Z)- -phenyl-1,6-dioxo-hepta-2,4-diene reacts with aziridine to give aziridine-cyclopentenol 3. This product arises from an intermolecular Michael addition of a nitrogen lone pair to the less reactive enone, followed by an intramolecular aldol reaction of the enol with ketone. Furthermore, the initially formed enol did not undergo nucleophilic attack onto the aziridine ring to form
(2E,4E)- 和 (2E,4Z)- -phenyl-1,6-dioxo-hepta-2,4-diene 与氮丙啶反应生成氮丙啶-环戊烯醇 3。该产物由分子间 Michael 加成氮孤对与反应性较低的烯酮,随后烯醇与酮发生分子内醛醇反应。此外,最初形成的烯醇不会对氮丙啶环进行亲核攻击以形成杂环。有趣的是,与仲胺的反应没有产生环戊烯醇加合物,这只会导致 (2E,4Z)-1-phenyl-1,6-dioxo-hepta-2,4-diene 异构化为更稳定的 ( 2E,4E)-1-phenyl-1,6-dioxo-hepta-2,4-diene 通过加入更具反应性的烯酮。