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 cascadereaction 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 reactioncascades (e.g. 4π electrocyclization, see scheme). These novel processes provide rapid access to densely