Synthesis and characterization of a ruthenium-containing copolymer for use as a photoredox catalyst
Synthesis and characterization of a ruthenium-containing copolymer for use as a photoredox catalyst
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用作光氧化还原催化剂的含钌共聚物的合成和表征
DOI：
10.1039/d3py00428g
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发表时间：
2023
影响因子：
4.6
通讯作者：
Elacqua, Elizabeth
中科院分区：
文献类型：
--
作者：
Huss, Steven;Walsh, Andrew R.;Griggs, Anna;Rodriguez-Acevedo, Diego Alejandro;Arias-Rotondo, Daniela M.;Elacqua, Elizabeth
在此，我们报告的PMMA-官能化的共聚物承载的光氧化还原活性钌（II）聚吡啶部分和芘侧基的合成和表征。Ru（II）polypyridyl和芘侧基的整合，使光氧化还原催化反应，通过能量转移。有效的能量转移过程通过聚合物用作还原催化剂朝向使用C-H芳基化形成碳-碳键的能力来证明，其中观察到产物产率在37-71%范围内。共聚物设计还表现出溶剂依赖性尺寸和催化剂活性，其中DMSO的使用促进了芘基团的聚集，这导致更高的产物产率，这可能是由于实现了更受限的结构，使得Ru（II）和芘侧基单元之间的能量转移更有效。
Herein, we report the synthesis and characterization of a PMMA-functionalized copolymer bearing a photoredox-active Ru(II) polypyridyl moiety and pyrene pendant groups. The integration of both the Ru(II) polypyridyl and pyrene pendant groups enabled a photoredox-catalyzed reaction through energy transfer. The effective energy transfer process was evidenced through the polymer's ability to serve as a reductive catalyst toward the formation of carbon–carbon bonds using C–H arylation, wherein product yields ranging from 37–71% were observed. The copolymer design also exhibited solvent-dependent size and catalyst activity, wherein the use of DMSO promoted aggregation of the pyrene groups that led to higher product yield, likely owing to achieving a more confined structure that enables more efficient energy transfer between Ru(II) and pyrene pendant units.