group strongly influences the course of the TiCl4–Zn promoted McMurry coupling of 1-acetylazulene which afforded, along with the normal coupling products, pinacol 2dl and alkene 3, the pinacolone 4. The latter was likely formed via rearrangement of the pinacolate intermediate. An improved, microwave-assisted protocol was developed for this reaction that provided high yields of products in a short reaction
azulen-1-yl基团强烈地影响了TiCl 4 -Zn促进的1-乙酰基azulene的McMurry偶联过程,与正常偶联产物一起提供了
频哪醇2 dl和烯烃3,
频哪醇4。后者可能是通过重新排列松果酸酯中间体形成的。为此反应开发了一种改进的微波辅助方法,该方法可在较短的反应时间内提供高产率的产物。空间反应路线与所提出的机理是一致的。