Direct arylation polycondensation as conjugated polymer synthesis methodology
Direct arylation polycondensation as conjugated polymer synthesis methodology
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直接芳基化缩聚作为共轭聚合物合成方法
DOI：
10.1038/s41428-018-0039-5
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发表时间：
2018
期刊：
影响因子：
2.8
通讯作者：
Nakabayashi Kazuhiro
中科院分区：
文献类型：
--
作者：
神野武史;北川大地;小畠誠也;三木菜摘，土家裕大，岩﨑真之，中島清彦，西原康師;Nakabayashi Kazuhiro
直接芳基化聚合（DArP）是二卤代芳烃单体与非取代芳烃单体之间的交叉偶联聚合，在共轭聚合物合成中受到广泛关注。在DArP中，不需要预先制备具有有机金属官能团的芳烃单体，与典型的交叉偶联聚合如Suzuki和Stille反应相反。此外，DArP副产物的低毒性有助于绿色化学。在效率和环境友好性方面，这些优点使DArP成为有吸引力的下一代聚合物合成方法。迄今为止，已经通过DArP合成了许多共轭聚合物。然而，许多问题仍有待克服，包括更好地理解聚合物结构和DArP因子之间的相关性，设计一个更有效的DArP系统，等等，解决这些问题可能导致建立DArP作为一个可行的替代共轭聚合物的合成。我们发现，各种共轭聚合物，如给体-受体交替共聚物（基于亚芳基二酰亚胺的给体-受体交替共聚物和基于噻吩异靛蓝的给体-受体交替共聚物）和区域规整的聚（3-烷基硒醚）的成功合成的DArP策略的基础上适当的分子设计和调节的催化体系。本文将重点介绍我们最近的研究开发的新型共轭聚合物通过DArP的合成。
Direct arylation polymerization (DArP), which is a cross-coupling polymerization between a dihaloarene monomer and a non-substituted arene monomer, has attracted widespread attention for conjugated polymer synthesis. In DArP, no prior preparation of arene monomers with organometallic functionalities is necessary, in contrast to typical cross-coupling polymerizations such as the Suzuki and Stille reactions. Furthermore, the low toxicity of the byproducts of DArP contributes to green chemistry. In terms of efficiency and environmental friendliness, these advantages make DArP an attractive next-generation polymer synthetic method. To date, numerous conjugated polymers have been synthesized by DArP. However, many problems remain to be overcome, including better understanding of the correlation between polymer structure and DArP factors, the design of a more efficient DArP system, and so on. Addressing these problems could lead to the establishment of DArP as a viable alternative for conjugated polymer synthesis. We revealed that a variety of conjugated polymers such as donor–acceptor alternating copolymers (arylene diimide-based donor–acceptor alternating copolymers and thienoisoindigo-based donor-acceptor alternating copolymers) and regioregular poly(3-alkylselenophene)s were successfully synthesized by the DArP strategy based on appropriate molecular design and adjustment of the catalytic system. This focus review will describe our recent studies developing the synthesis of novel conjugated polymers via DArP.
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