Synergistic Effect on Covalent Triazine Framework Tailored for Heterogeneous Photocatalytic Metal-Free C-Br and C-Cl Activation

Lopez-Magano, Alberto; Salaverri, Noelia; Marzo, Leyre; Más, Rubén; Jose, Aleman

doi:10.2139/ssrn.4137490

Cited by 1 publication

(1 citation statement)

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“…When TiO 2 and conjugated polymer poly( p -benzene) (PPP) were successfully used as multiphase co-catalyst (PPP/TiO 2 ), electron-adsorbing group substituted aryl bromide/chlorine could be reduced for hydrodehalogenation under visible light conditions with triethylamine as an electron donor [ 82 ]. A new covalent triazine frameworks (CTF) containing phenanthroline fragments (Phen-CTF), as the visible light-mediated photocatalyst, showed an outstanding activity for the dehalogenation processes of aryl bromides and aryl chlorides with electron-withdrawing group to form C-C, C-P and C-B bonds [ 83 ]. Boron carbonitride (BCN) ceramics could reduce (het)aryl halides, including various substituted aromatic chlorides and aromatic bromides, to construct new C-H, C-C, and C-S bonds at ambient reaction conditions with visible light irradiation [ 84 ].…”

Section: Othersmentioning

confidence: 99%

Visible-Light Photocatalytic Reduction of Aryl Halides as a Source of Aryl Radicals

et al. 2022

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Aryl- and heteroaryl units are present in a wide variety of natural products, pharmaceuticals, and functional materials. The method for reduction of aryl halides with ubiquitous distribution is highly sought after for late-stage construction of various aromatic compounds. The visible-light-driven reduction of aryl halides to aryl radicals by electron transfer provides an efficient, simple, and environmentally friendly method for the construction of aromatic compounds. This review summarizes the recent progress in the generation of aryl radicals by visible-light-driven reduction of aryl halides with metal complexes, organic compounds, semiconductors as catalysts, and alkali-assisted reaction system. The ability and mechanism of reduction of aromatic halides in various visible light induced systems are summarized, intending to illustrate a comprehensive introduction of this research topic to the readers.

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Section: Othersmentioning

confidence: 99%