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- Title
Topotactic Synthesis of Phosphabenzene‐Functionalized Porous Organic Polymers: Efficient Ligands in CO<sub>2</sub> Conversion.
- Authors
Yang, Zhenzhen; Chen, Hao; Li, Bo; Guo, Wei; Jie, Kecheng; Sun, Yifan; Jiang, De‐en; Popovs, Ilja; Dai, Sheng
- Abstract
Progress toward the preparation of porous organic polymers (POPs) with task‐specific functionalities has been exceedingly slow—especially where polymers containing low‐oxidation phosphorus in the structure are concerned. A two‐step topotactic pathway for the preparation of phosphabenzene‐based POPs (Phos‐POPs) under metal‐free conditions is reported, without the use of unstable phosphorus‐based monomers. The synthetic route allows additional functionalities to be introduced into the porous polymer framework with ease. As an example, partially fluorinated Phos‐POPs (F‐Phos‐POPs) were obtained with a surface area of up to 591 m2 g−1. After coordination with Ru species, a Ru/F‐Phos‐POPs catalyst exhibited high catalytic efficiency in the formylation of amines (turnover frequency up to 204 h−1) using a CO2/H2 mixture, in comparison with the non‐fluorinated analogue (43 h−1) and a Au/TiO2 heterogeneous catalysts reported previously (<44 h−1). This work describes a practical method for synthesis of porous organic phosphorus‐based polymers with applications in transition‐metal‐based heterogeneous catalysis.
- Subjects
POROUS polymers; HETEROGENEOUS catalysts; HETEROGENEOUS catalysis; LIGANDS (Chemistry); FORMYLATION; PERSISTENT pollutants; RUTHENIUM catalysts
- Publication
Angewandte Chemie, 2019, Vol 131, Issue 39, p13901
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201907015