Phenylphenothiazine-Based Porous Organic Polymers as Visible-Light Heterogeneous Photocatalysts for Switchable Bromoalkylation and Cyclopropanation of Unactivated Terminal Alkenes,ACS Sustainable Chemistry & Engineering

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Phenylphenothiazine-Based Porous Organic Polymers as Visible-Light Heterogeneous Photocatalysts for Switchable Bromoalkylation and Cyclopropanation of Unactivated Terminal Alkenes
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2022-04-01 , DOI: 10.1021/acssuschemeng.2c00054
Rui Wang ₁ , Cen Zhou ₂ , Xiaozhou Huang ₁ , Jun-Yan Wu ₁ , Xiao Zhang ₁

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We report the design and synthesis of porous organic polymers (POPs) based on N-phenylphenothiazine (PTH), which typically requires ultraviolet-light irradiation, as a class of purely organic, stable, and reusable visible-light heterogeneous photocatalysts. The extended π-conjugation and polymeric networks not only enhance visible-light absorption but also accelerate the reaction rates. More intriguingly, the switchable bromoalkylation and cyclopropanation of unactivated terminal alkenes could be achieved by simply tuning the solvents under PTH-POP catalysis. The flexible manipulation of the resultant products further demonstrates its synthetic utility.

中文翻译：

苯基吩噻嗪基多孔有机聚合物作为可见光多相光催化剂用于未活化末端烯烃的可切换溴烷基化和环丙烷化

我们报告了基于N-苯基吩噻嗪 (PTH) 的多孔有机聚合物 (POPs) 的设计和合成，它通常需要紫外光照射，作为一类纯有机、稳定和可重复使用的可见光非均相光催化剂。扩展的 π 共轭和聚合物网络不仅增强了可见光吸收，而且加快了反应速率。更有趣的是，可以通过在 PTH-POP 催化下简单地调节溶剂来实现未活化末端烯烃的可转换溴烷基化和环丙烷化。所得产物的灵活操作进一步证明了其合成效用。

更新日期：2022-04-01

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