The Rubrenic Synthesis: The Delicate Equilibrium between Tetracene and Cyclobutene
作者:Daniele Braga、Abdelhafid Jaafari、Luciano Miozzo、Massimo Moret、Silvia Rizzato、Antonio Papagni、Abderrahim Yassar
DOI:10.1002/ejoc.201100033
日期:2011.8
we describe the synthesis of new substituted tetraaryltetracenes, obtained by the dimerization of triarylchloroallenes, prepared from propargyl alcohols. The propargyl alcohols were prepared by two different synthetic strategies and then the alcohols were treated to obtain the corresponding acenes. In addition to the expected tetracene derivatives, we observed the formation of bis(alkylidene)cyclobutenes
在本文中,我们描述了新的取代四芳基并四苯的合成,通过三芳基氯丙二烯的二聚反应获得,由炔丙醇制备。炔丙醇通过两种不同的合成策略制备,然后对醇进行处理以获得相应的并苯。除了预期的并四苯衍生物外,我们还观察到双(亚烷基)环丁烯的形成。当存在强给电子取代基时,主要产物是环丁烯。我们讨论了形成环丁烯的反应机制。