Yoon Ki-Young, Dong Guangbin
Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA.
Angew Chem Int Ed Engl. 2018 Jul 9;57(28):8592-8596. doi: 10.1002/anie.201804116. Epub 2018 Jun 12.
Herein, we report a cooperatively palladium/norbornene-catalyzed polymerization, which simplifies the synthesis of functional aromatic polymers, including conjugated polymers. Specifically, an A B C-type multicomponent polymerization that is based on an ortho amination/ipso alkynylation reaction was developed for the preparation of various amine-functionalized arylacetylene-containing polymers. Within a single catalytic cycle, the amine side chains are site-selectively installed in situ by C-H activation during the polymerization process, which represents a major difference from conventional cross-coupling polymerizations. This "in situ functionalization" strategy enables the modular incorporation of functional side chains starting from simple monomers, thereby conveniently affording a diverse range of functional polymers.
在此，我们报道了一种钯/降冰片烯协同催化的聚合反应，该反应简化了功能芳香族聚合物（包括共轭聚合物）的合成。具体而言，我们开发了一种基于邻氨基化/本位炔基化反应的ABC型多组分聚合反应，用于制备各种含胺官能化芳基乙炔的聚合物。在单个催化循环中，胺侧链在聚合过程中通过C-H活化原位选择性地安装，这是与传统交叉偶联聚合反应的主要区别。这种“原位官能化”策略能够从简单单体开始模块化引入功能侧链，从而方便地得到多种功能聚合物。
