Details

Autor(en) / Beteiligte

• Song, Chaoyang
• Nie, Junqi
• Ma, Chao
• Lu, Cuifen
• Wang, Feiyi
• Yang, Guichun

Titel

1,2,3-Triazole-based conjugated porous polymers for visible light induced oxidative organic transformations

Ist Teil von

• Applied catalysis. B, Environmental, 2021-06, Vol.287, p.119984, Article 119984

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• [Display omitted] •A series of novel conjugated porous polymers were designed and synthesized using 1,2,3-triazole as the acceptor unit.•The optoelectronic properties and photocatalytic performances can be finely tuned using different donor units.•The newly synthesized polymers exhibited prominent photocatalytic activities toward organic chemical transformations. 1,2,3-Triazole contained conjugated porous polymers (CPPs) have recently emerged as a new class of efficient photocatalysts. To gain more insight into the excellent photocatalytic activity of this kind of CPPs, herein, we report the design and preparation of a series of 1,2,3-triazole-based CPPs via oxidative coupling polymerization to study their photocatalytic performance. These CPPs have donor-acceptor properties and 1,2,3-triazole serves as an electron acceptor. The resulting CPPs with thiophene, carbazole and diphenylamine as electron donor units, respectively, have distinct porosities and optoelectronic properties, and showed effective photocatalytic performance towards oxidative hydroxylation of arylboric acids and alkylation of vinylarenes with diethyl bromomalonate or bromoacetonitrile. The thiophene contained CPP was a more efficient photocatalyst for the catalytic reactions, which can be attributed to its smaller optical band gap and greater charge separation efficiency. Furthermore, PTPT has shown reliable recyclability with no significant loss in its catalytic activity.