Acetylenic Homocoupling Methodology Towards the Synthesis of 1,3-Butadiynyl Macrocycles: [14<sub>2</sub>]-Alleno-Acetylenic Cyclophanes
作者:Inmaculada R. Lahoz、Armando Navarro-Vázquez、José Lorenzo Alonso-Gómez、M. Magdalena Cid
DOI:10.1002/ejoc.201301701
日期:2014.3
[142]-Alleno-acetyleniccyclophanes were synthesized through two different approaches: an intermolecular coupling between two alkynyl fragments, and an intramolecular ring-closure of a linear acyclic bisalkynyl oligomer. The symmetry of the target dictates the choice of the most suitable method. To illustrate these approaches we have used 1,3-diethynyl-substituted allenes as building blocks. Due to