A review on uranyl-based photocatalysts in photocatalytic organic transformation DOI
Peng Gao,

Zewen Shen,

Yana Chen

et al.

Journal of Catalysis, Journal Year: 2024, Volume and Issue: unknown, P. 115900 - 115900

Published: Dec. 1, 2024

Language: Английский

Catalysis in the Excited State: Bringing Innate Transition Metal Photochemistry into Play DOI Creative Commons
Fabio Juliá

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 4665 - 4680

Published: March 5, 2025

Transition metal catalysis is an indispensable tool for organic synthesis that has been harnessed, modulated, and perfected many decades by careful selection of centers ligands, giving rise to synthetic methods with unparalleled efficiency chemoselectivity. Recent developments have demonstrated how light irradiation can also be recruited as a powerful dramatically alter the outcome catalytic reactions, providing access innovative pathways remarkable potential. In this context, adoption photochemical conditions mainstream strategy drive reactions unveiled exciting opportunities exploit rich excited-state framework transition metals applications. This Perspective examines advances in application complexes standalone photocatalysts, exploiting innate reactivity their excited states beyond common use photoredox catalysts. An account relevant examples dissected provide discussion on electronic reorganization, orbitals involved, associated different types states. analysis aims practitioners fundamental principles guiding strategies understand, design, apply light-activation homogeneous synthesis.

Language: Английский

Citations

2
Nucleophilic Aromatic Substitution of Halobenzenes and Phenols with Catalysis by Arenophilic π Acids DOI
Kai Chen,

Hang Shi

Accounts of Chemical Research, Journal Year: 2024, Volume and Issue: 57(15), P. 2194 - 2206

Published: July 23, 2024

ConspectusLewis π acids, particularly high-valent transition metals with vacant orbitals, can coordinate unsaturated compounds such as alkynes and alkenes by means of π-bonding. The coordination enhances the electrophilicity bound compounds, thereby facilitating reactions─such nucleophilic addition─that take place at ligated carbon-carbon multiple bonds. This activation phenomenon occurs ligand rather than metal atom, it has been extensively utilized in development catalytic methods. In addition to alkenes, aromatic featuring a phenyl ring be activated an electrophilic transition-metal unit (e.g., Cr(CO)

Language: Английский

Citations

9
From aryl chlorides to phenols: Photouranium-catalyzed hydroxylation via water splitting DOI

Mengjing Sun,

Leiyang Bai, Chengliang Li

et al.

Chem Catalysis, Journal Year: 2024, Volume and Issue: 4(7), P. 101027 - 101027

Published: June 12, 2024

Language: Английский

Citations

6
Hepatotoxicity of Three Common Liquid Crystal Monomers in Mus musculus: Differentiation of Actions Across Different Receptors and Pathways DOI
Zhichao Zhang, Shengjie Yuan,

Zhongchao Yang

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Liquid crystal monomers (LCMs) of different chemical structures were widely detected in various environmental matrices. However, their health risk evaluation is lacking. Herein, three representative LCMs selected from 74 LCM candidates upon literature review and acute cytotoxicity evaluation, then Mus musculus exposed to the for 42 days at doses 0.5 50 μg/kg/d investigate hepatotoxicity mechanisms. Phenotypic histopathological results showed that (DTMDPB, MeO3bcH, 5OCB) induced hepatomegaly, only 5OCB fatty liver. DTMDPB MeO3bcH decreased total cholesterol (TCHO) triglyceride (TG) content, whereas increased TCHO, TG, alanine aminotransferase levels. Transcriptome molecular docking analysis revealed by agonizing farnesoid X receptor, resulting disruption unsaturated acid biosynthesis, ascorbic antioxidant pathways, circadian clock homeostasis. promoted inflammation altered acid, primary bile rhythm antagonizing aryl hydrocarbon receptor. antagonized peroxisome proliferator-activated receptors, leading liver caused steroid, cholesterol, terpenoid backbone biosynthesis pathways. This study provides references understanding with selection priority control LCMs.

Language: Английский

Citations

0
Photoredox-Catalyzed Nucleophilic Aromatic Substitution of Halophenols with Azoles via Oligomeric Phenylene Oxide Radicals DOI
Jan Seliger, Lydia R. Fries, Jonathan M. Meinhardt

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Nucleophilic aromatic substitution (SNAr) reactions are widely employed in organic synthesis yet typically require the use of electron-deficient arenes for efficient reactivity. Herein, we report a photocatalytic protocol formal SNAr electron-rich 4-halophenols with azole nucleophiles under mild, redox-neutral conditions. The transformation proceeds via two-stage mechanism consisting initial halophenol oligomerization to produce key oligo(phenylene oxide) intermediate and its subsequent breakdown through enabled by photoredox-catalyzed arene umpolung. Reaction monitoring, stoichiometric control experiments, luminescence quenching data implicate phenoxyl radicals Brønsted acid-activated as reactive species stages, respectively. synthetic utility this method is demonstrated across 17 (pseudo)halophenols bearing variety leaving groups (F, Cl, Br, OMs, OTs) 22 examples.

Language: Английский

Citations

0
Visible-Light-Induced Photocatalytic Degradation of Polyvinyl Chloride under Normal Temperature and Pressure via Uranyl Photocatalyst DOI
S. H. Tang,

Shuyun Zhang,

Yanxin Jiang

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Language: Английский

Citations

0
F- dopants blocking hydroxyl interference: A facile solution for realizing humidity-resistive, selectivity adjustable, highly sensitive In2O3-based gas sensors DOI

Zhidong Jin,

Yue Mou,

Jinbo Zhao

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162338 - 162338

Published: April 1, 2025

Language: Английский

Citations

0
Photoredox-Catalyzed Markovnikov Hydroamination of Alkenes with Azoles DOI

Jinhuan Nie,

Yutao Shi,

Mengran Gan

et al.

Organic Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 30, 2024

A visible-light induced intermolecular hydroamination of alkenes with azoles is reported, delivering pharmaceutically valuable N-benzyl in high yields excellent Markovnikov selectivity. Mechanistic studies suggest that the process initiated by energy transfer excited photocatalyst alkenes, followed single electron reduction, protonation, and subsequent oxidation to afford key alkyl carbocation intermediate. This protocol exhibits advantages broad functional group tolerance, atom economy, efficiency, mild reaction conditions.

Language: Английский

Citations

1
Photouranium-catalyzed hydroxylation of aryl chlorides via water splitting DOI
Kai Chen, Hang Shi

Chem Catalysis, Journal Year: 2024, Volume and Issue: 4(7), P. 101062 - 101062

Published: July 1, 2024

Language: Английский

Citations

0
Synthesis and Photocatalytic sp3 C-H Bond Functionalization of Salen-Ligand-Supported Uranyl(VI) Complexes DOI Creative Commons
Jialu He,

Xingxing Gong,

Yafei Li

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(17), P. 4077 - 4077

Published: Aug. 28, 2024

Recent years have seen increasing interest in uranyl(VI) photocatalysis. In this study, uranyl complexes were successfully synthesized from ligands

Language: Английский

Citations

0