Cascade Pericyclic Reactions of Alleno-Acetylenes: Facile Access to Highly Substituted Cyclobutene, Dendralene, Pentalene, and Indene Skeletons
作者:Corinna M. Reisinger、Pablo Rivera-Fuentes、Samuel Lampart、W. Bernd Schweizer、François Diederich
DOI:10.1002/chem.201102852
日期:2011.11.11
tuning of cascade reaction pathways: The allene core of 1,3‐di‐tert‐butyl‐1,3‐diethynylallenes has been shown in the past to be essentially unreactive. However, its inherent reactivity could be unleashed by the introduction of tailored substituents to induce a variety of highly selective reaction cascades (e.g. 4π electrocyclization, see scheme). These novel processes provide rapid access to densely
级联反应路径的微调:过去已证明1,3-二叔丁基-1,3-二乙炔基丙二烯的烯丙基核基本上没有反应性。然而,通过引入定制的取代基来诱导各种高度选择性的反应级联反应(例如4π电环化,请参见方案),可以释放其固有的反应性。这些新颖的过程可在一锅操作中快速访问具有高分子复杂性的高密度功能化碳骨架。