γ-Keto thioesters were easily transformed into α,β-unsaturated lactams using a two-step process (via furans) or by a one-pot reaction. This methodology is general and efficient leading to a varied substitution pattern. The structures of all new heterocycles were assigned using 2D NMR experiments, computer-assisted elucidation, and X-ray diffraction analyses.
γ-酮
硫酯可以通过两步法(通过
呋喃)或一锅反应轻松转化为α,β-不饱和内酰胺。这一方法具有通用性和高效性,能够获得多样的取代模式。所有新颖杂环的结构均通过二维核磁共振实验、计算机辅助解析和X射线衍射分析进行了确认。