4.6 Article

Photocatalytic Ketyl Radical Initiated Cketyl-Csp2/Csp3 Coupling on ZnIn2S4

Related references

Note: Only part of the references are listed.
Article Chemistry, Organic

Visible Light-Driven Decarboxylative Alkylation of Aldehydes via Electron Donor-Acceptor Complexes of Active Esters

Fang-Yuan Nie et al.

Summary: In this paper, a photocatalyst-free and visible light-driven decarboxylative alkylation of pyridinaldehydes is developed. The reactions are initiated by photoinduced single electron transfer and successfully convert pyridinaldehydes and 2-quinolinaldehydes to the corresponding ketones. Besides, this method also enables two other transformations.

JOURNAL OF ORGANIC CHEMISTRY (2022)

Article Chemistry, Organic

Insights into the Mechanism of an Allylic Arylation Reaction via Photoredox-Coupled Hydrogen Atom Transfer

Ethan H. Spielvogel et al.

Summary: Despite the widespread use of photoredox coupled hydrogen atom transfer (HAT) reactions, the precise mechanism and kinetics are poorly understood. This report presents a mechanistic study of a prototypical tandem photoredox/HAT reaction coupling cyclohexene and 1,4-dicyanobenzene using an Ir(ppy)(3) photocatalyst and thiol HAT catalyst. Key unproductive pathways and side products were identified, with the reaction efficiency being limited by parasitic absorption and unproductive quenching.

JOURNAL OF ORGANIC CHEMISTRY (2022)

Article Chemistry, Multidisciplinary

Defective Ultrathin ZnIn2S4 for Photoreductive Deuteration of Carbonyls Using D2O as the Deuterium Source

Chuang Han et al.

Summary: This study introduces a noble metal-free and ultrathin ZnIn2S4 photocatalyst for deuteration reactions using heavy water as the sole deuterium source. By synthesizing defective two-dimensional ZIS nanosheets with surfactant assistance, the performance is significantly enhanced.

ADVANCED SCIENCE (2022)

Article Chemistry, Physical

Visible light-driven carbon-carbon reductive coupling of aromatic ketones activated by Ni-doped CdS quantum dots: An insight into the mechanism

Rong Hu et al.

Summary: This study demonstrates a mechanism for photocatalytic reductive coupling under visible light using low-cost catalysts, providing a new approach for solar-driven chemical synthesis. By investigating processes such as proton-coupled electron transfer in detail, the key radical formation stage is elucidated.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Chemistry, Multidisciplinary

Quantum Dots Photocatalyze Intermolecular [2+2] Cycloadditions of Aromatic Alkenes Adsorbed to their Surfaces via van der Waals Interactions

Yishu Jiang et al.

Summary: This study successfully extended the scope of quantum dot photocatalyzed cycloaddition reactions to substrates without anchoring groups by introducing polyaromatic energy shuttle molecules on the quantum dot surface, achieving high yields. Compared to traditional catalyst Ir(ppy)(3), it offers the advantages of lower catalyst loading, higher stability, and reusability.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

Article Chemistry, Multidisciplinary

Engineering Lattice Disorder on a Photocatalyst: Photochromic BiOBr Nanosheets Enhance Activation of Aromatic C-H Bonds via Water Oxidation

Xing Cao et al.

Summary: This study reports reversible photochromic BiOBr nanosheets (p-BiOBr) that can change colors by trapping photogenerated holes and bleached by water oxidation to generate hydroxyl radicals, demonstrating enhanced carrier separation and water oxidation. Efficient photocatalytic coupling and oxidation reactions of ethylbenzene can be achieved by p-BiOBr in a water-based medium. The p-BiOBr nanosheets feature lattice disordered defects on the surface, which provide abundant uncoordinated catalytic sites and induce structural distortions and lattice strain, resulting in altered band structure and significantly enhanced photocatalytic performances.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

Article Chemistry, Multidisciplinary

Gradient Hydrogen Migration Modulated with Self-Adapting S Vacancy in Copper-Doped ZnIn2S4 Nanosheet for Photocatalytic Hydrogen Evolution

Shuqu Zhang et al.

Summary: This study successfully modulates charge flow at the atomic level by introducing atomic copper, achieving a gradient hydrogen migration for enhanced photocatalytic hydrogen evolution. Experimental results and theoretical simulations reveal the mechanism of vacancy generation and behavior after copper introduction.

ACS NANO (2021)

Article Chemistry, Multidisciplinary

Direct, Site-Selective and Redox-Neutral α-C-H Bond Functionalization of Tetrahydrofurans via Quantum Dots Photocatalysis

Jia Qiao et al.

Summary: In this study, semiconductor quantum dots (QDs) were used to activate the alpha-C-H bond of tetrahydrofuran (THF) under redox-neutral conditions, enabling the synthesis of value-added chemicals without the need for stoichiometric oxidants or hydrogen atom transfer reagents. This scalable benchtop approach demonstrates the selective C(sp3)-H bond activation of THF using a QD photocatalyst, providing a versatile method for chemical transformations.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Multidisciplinary

Accessing Photoredox Transformations with an Iron(III) Photosensitizer and Green Light

Akin Aydogan et al.

Summary: Efficient excited-state electron transfer was achieved between an iron(III) photosensitizer and organic electron donors under green light irradiation, using a long-lived and luminescent ligand-to-metal charge-transfer (LMCT) excited state iron photosensitizer. The catalyst demonstrated yields exceeding 90% in a benchmark dehalogenation reaction, with enhanced stability compared to a typical photosensitizer. The initial catalytic step involved electron transfer from an amine to the photoexcited iron sensitizer, shown to occur with a large cage-escape yield, indicating potential advantages of Fe(III) photosensitizers in reductive electron transfer.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Article Multidisciplinary Sciences

Interfacial chemical bond and internal electric field modulated Z-scheme Sv-ZnIn2S4/MoSe2 photocatalyst for efficient hydrogen evolution

Xuehua Wang et al.

Summary: The construction of Z-scheme heterostructures is crucial for efficient photocatalytic water splitting. By modulating Mo-S bond and internal electric field, a novel S-v-ZnIn2S4/MoSe2 photocatalyst was developed with high hydrogen evolution rate and apparent quantum yield, demonstrating significant enhancement in photocatalytic performance.

NATURE COMMUNICATIONS (2021)

Article Multidisciplinary Sciences

Construction of C-C bonds via photoreductive coupling of ketones and aldehydes in the metal-organic-framework MFM-300(Cr)

Tian Luo et al.

Summary: The study presents a highly efficient system for the photoreductive coupling of aldehydes and ketones to the corresponding 1,2-diols under mild conditions, addressing the challenge of constructing C-C bonds via reductive coupling of carbonyl compounds in organic transformations.

NATURE COMMUNICATIONS (2021)

Review Chemistry, Multidisciplinary

Recent advances in the chemistry of ketyl radicals

Aron Peter et al.

Summary: Ketyl radicals are important reactive intermediates in synthesis, which can be generated through various methods and play crucial roles in new synthetic protocols. Research focuses on innovation in generation pathways, applications in new synthetic schemes, strategies for enantioselectivity control, and detailed reaction mechanisms.

CHEMICAL SOCIETY REVIEWS (2021)

Review Chemistry, Multidisciplinary

Visible-Light Photocatalysis of the Ketyl Radical Coupling Reaction

Qing Xia et al.

CHEMISTRY-A EUROPEAN JOURNAL (2019)

Article Chemistry, Multidisciplinary

Catalytic enantioselective radical coupling of activated ketones with N-aryl glycines

Yang Liu et al.

CHEMICAL SCIENCE (2018)

Review Chemistry, Multidisciplinary

The recent achievements of redox-neutral radical C-C cross-coupling enabled by visible-light

Jin Xie et al.

CHEMICAL SOCIETY REVIEWS (2017)

Review Chemistry, Multidisciplinary

Carbon-Carbon Bond Forming Reactions via Photogenerated Intermediates

Davide Ravelli et al.

CHEMICAL REVIEWS (2016)

Article Chemistry, Organic

Photoredox-Catalyzed Ketyl-Olefin Coupling for the Synthesis of Substituted Chromanols

Eleonora Fava et al.

JOURNAL OF ORGANIC CHEMISTRY (2016)

Review Chemistry, Multidisciplinary

Cross-Coupling Reactions Using Samarium(II) Iodide

Michal Szostak et al.

CHEMICAL REVIEWS (2014)

Article Chemistry, Physical

Implicit solvation model for density-functional study of nanocrystal surfaces and reaction pathways

Kiran Mathew et al.

JOURNAL OF CHEMICAL PHYSICS (2014)

Article Chemistry, Multidisciplinary

Enantioselective Photoredox Catalysis Enabled by Proton-Coupled Electron Transfer: Development of an Asymmetric Aza-Pinacol Cyclization

Lydia J. Rono et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2013)

Article Chemistry, Multidisciplinary

Catalytic Ketyl-Olefin Cyclizations Enabled by Proton-Coupled Electron Transfer

Kyle T. Tarantino et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2013)

Article Biochemistry & Molecular Biology

Synthesis and antirhinovirus activity of new 3-benzyl chromene and chroman derivatives

Cinzia Conti et al.

BIOORGANIC & MEDICINAL CHEMISTRY (2009)

Article Chemistry, Physical

A climbing image nudged elastic band method for finding saddle points and minimum energy paths

G Henkelman et al.

JOURNAL OF CHEMICAL PHYSICS (2000)