3-(3-(tert-Butyldimethylsilyloxy)buta-1,3-dienyl)oxazolidin-2-one was reacted with several electrophilic 2H-azirines to give the expected cycloadducts in moderate to good yields. Treatment of the cycloadducts under acidic conditions gave six-membered ring aminoenones and aziridine derivatives. In the case where anilinium fluoride was used an inversion at the C-2 stereogenic center was observed forming an
使3-(3-(叔丁基二甲基甲
硅烷基氧基) buta-1,3-二烯基)
恶唑烷-2-酮与几种亲电的2 H-
叠氮基反应,以中等至良好的收率得到预期的环加合物。在酸性条件下处理环加合物得到六元环
氨基烯酮和
氮丙啶衍
生物。在使用
氟化
苯胺的情况下,观察到在C-2立体异构中心发生了转化,形成了前一个环加合物的异构体。手性(R)-3-(3-(叔丁基二甲基甲
硅烷氧基)丁-1,3-二烯基)-
4-苯基恶唑烷丁-2-酮也与亲电子的2 H-
叠氮基反应。反应没有显示非对映选择性,但是两种非对映异构体均通过色谱法完全分离。