describe a direct and modular approach to [6,n] and [7,n]-1-azabicyclic unsaturated lactams, most of which bear at least one endocyclic heteroatom. A site-selective hexannulation reaction between cyclic α-chloro eneformamides and cyclic anhydrides is implicated. The scope of the anhydride component in a Castagnoli–Cushman reaction has been extended beyond 5-, 6-, and 7-membered rings.
功能化的
叠氮酮和
异喹啉酮是
生物活性分子中常见的基序。在这里,我们描述了[6,n ]和[7,n ] -1-
氮杂双环不饱和内酰胺的直接和模块化方法,其中大多数带有至少一个内环杂原子。涉及环状α-
氯代烯甲酰胺和环状酸酐之间的选择性位六价反应。Castagnoli-Cushman反应中酸酐组分的范围已扩展到5元,6元和7元环。