Sequential Cross‐Coupling/Annulation of
<i>ortho</i>
‐Vinyl Bromobenzenes with Aromatic Bromides for the Synthesis of Polycyclic Aromatic Compounds
作者:Dong Wei、Meng‐Yao Li、Bin‐Bin Zhu、Xiao‐Di Yang、Fang Zhang、Chen‐Guo Feng、Guo‐Qiang Lin
DOI:10.1002/anie.201910792
日期:2019.11.11
A sequential cross-coupling/annulation of ortho-vinyl bromobenzenes with aromatic bromides was realized, providing a direct and modular approach to access polycyclic aromatic compounds. A vinyl-coordinated palladacycle was proposed as the key intermediate for this sequential process. Excellent chemoselectivity and regioselectivity were observed in this transformation. The practicability of this method
实现了邻乙烯基溴苯与芳族溴的顺序交叉偶联/环化反应,这提供了直接和模块化的方法来获得多环芳族化合物。乙烯基配位的palladacycle被提议为该顺序过程的关键中间体。在该转化中观察到优异的化学选择性和区域选择性。该方法的实用性因其广泛的底物范围,出色的官能团耐受性以及与所得产物相关的丰富转化而突出。