Log in

Relevant bibliographies by topics / Photoredox catalytic system / Journal articles

To see the other types of publications on this topic, follow the link: Photoredox catalytic system.

Journal articles on the topic 'Photoredox catalytic system'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Photoredox catalytic system.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Yang, Qiong, Fengqian Zhao, Na Zhang, et al. "Mild dynamic kinetic resolution of amines by coupled visible-light photoredox and enzyme catalysis." Chemical Communications 54, no. 100 (2018): 14065–68. http://dx.doi.org/10.1039/c8cc07990k.

Full text

Abstract:

A mild and efficient dynamic kinetic resolution (DKR) of amines was achieved by combining visible-light-induced photoredox catalysis and enzyme catalysis. This dual catalytic system was appropriate for both monoamines and 1,4-diamines.

APA, Harvard, Vancouver, ISO, and other styles

2

Leadbeater, Nicholas, Jyoti Nandi, and Mason Witko. "Combining Oxoammonium Cation Mediated Oxidation and Photoredox Catalysis for the Conversion of Aldehydes into Nitriles." Synlett 29, no. 16 (2018): 2185–90. http://dx.doi.org/10.1055/s-0037-1610272.

Full text

Abstract:

A method to oxidize aromatic aldehydes to nitriles has been developed. It involves a dual catalytic system of 4-acetamido-TEMPO and visible-light photoredox catalysis. The reaction is performed using ammonium persulfate as both the terminal oxidant and nitrogen source.

APA, Harvard, Vancouver, ISO, and other styles

3

Tlahuext-Aca, Adrian, Matthew N. Hopkinson, Basudev Sahoo, and Frank Glorius. "Dual gold/photoredox-catalyzed C(sp)–H arylation of terminal alkynes with diazonium salts." Chemical Science 7, no. 1 (2016): 89–93. http://dx.doi.org/10.1039/c5sc02583d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Hu, Xia, Guoting Zhang, Faxiang Bu, et al. "Photoinduced oxidative activation of electron-rich arenes: alkenylation with H2 evolution under external oxidant-free conditions." Chemical Science 9, no. 6 (2018): 1521–26. http://dx.doi.org/10.1039/c7sc04634k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Hossain, Asik, Aditya Bhattacharyya, and Oliver Reiser. "Copper’s rapid ascent in visible-light photoredox catalysis." Science 364, no. 6439 (2019): eaav9713. http://dx.doi.org/10.1126/science.aav9713.

Full text

Abstract:

Visible-light photoredox catalysis offers a distinct activation mode complementary to thermal transition metal catalyzed reactions. The vast majority of photoredox processes capitalizes on precious metal ruthenium(II) or iridium(III) complexes that serve as single-electron reductants or oxidants in their photoexcited states. As a low-cost alternative, organic dyes are also frequently used but in general suffer from lower photostability. Copper-based photocatalysts are rapidly emerging, offering not only economic and ecological advantages but also otherwise inaccessible inner-sphere mechanisms,

APA, Harvard, Vancouver, ISO, and other styles

6

Hossain, Asik, Aditya Bhattacharyya, and Oliver Reiser. "Copper's rapid ascent in visible-light photoredox catalysis." Science 364, no. 6439 (2019): eaav9713. https://doi.org/10.1126/science.aav9713.

Full text

Abstract:

Visible-light photoredox catalysis offers a distinct activation mode complementary to thermal transition metal catalyzed reactions. The vast majority of photoredox processes capitalizes on precious metal ruthenium(II) or iridium(III) complexes that serve as single-electron reductants or oxidants in their photoexcited states. As a low-cost alternative, organic dyes are also frequently used but in general suffer from lower photostability. Copper-based photocatalysts are rapidly emerging, offering not only economic and ecological advantages but also otherwise inaccessible inner-sphere mechanisms,

APA, Harvard, Vancouver, ISO, and other styles

7

Naumann, Robert, Christoph Kerzig, and Martin Goez. "Laboratory-scale photoredox catalysis using hydrated electrons sustainably generated with a single green laser." Chem. Sci. 8, no. 11 (2017): 7510–20. http://dx.doi.org/10.1039/c7sc03514d.

Full text

Abstract:

A combined photokinetical approach helped develop and optimize a green-light driven photoredox catalytic system that generates a “super-reductant” with simple instrumentation, consumes only a bioavailable donor, and provides very high turnover numbers.

APA, Harvard, Vancouver, ISO, and other styles

8

Pagire, Santosh K., Naoya Kumagai та Masakatsu Shibasaki. "Introduction of a 7-aza-6-MeO-indoline auxiliary in Lewis-acid/photoredox cooperative catalysis: highly enantioselective aminomethylation of α,β-unsaturated amides". Chemical Science 11, № 20 (2020): 5168–74. http://dx.doi.org/10.1039/d0sc01890b.

Full text

Abstract:

An efficient cooperative chiral Lewis acid and photoredox catalytic system towards the highly enantioselective radical conjugate addition of α-amino radicals to α,β-unsaturated amides is developed with the implementation of unique auxiliaries.

APA, Harvard, Vancouver, ISO, and other styles

9

Li, Heng-Hui, Shaoyu Li, Jun Kee Cheng, Shao-Hua Xiang, and Bin Tan. "Direct arylation of N-heterocycles enabled by photoredox catalysis." Chemical Communications 58, no. 27 (2022): 4392–95. http://dx.doi.org/10.1039/d2cc01212j.

Full text

Abstract:

A photoredox catalytic system was developed to construct N-heterobiaryls via direct arylation from readily accessible substrates. While phenols act as both coupling partner and proton donor, regular arenes were also applicable with HFIP as a solvent.

APA, Harvard, Vancouver, ISO, and other styles

10

Kostromitin, Vladislav S., Vitalij V. Levin, and Alexander D. Dilman. "Atom Transfer Radical Addition via Dual Photoredox/Manganese Catalytic System." Catalysts 13, no. 7 (2023): 1126. http://dx.doi.org/10.3390/catal13071126.

Full text

Abstract:

Atom transfer radical addition of bromonitromethane and 1,2-dibromotetrafluoroethane to alkenes is described. The reaction is performed under blue light irradiation using two catalysts: 4CzIPN and manganese (II) bromide. The cyanoarene photocatalyst serves for the redox activation of starting organic bromide, while the manganese salt facilitates the trapping of the alkyl radical with the formation of the carbon–bromine bond.

APA, Harvard, Vancouver, ISO, and other styles

11

Mitsunuma, Harunobu, Hiromu Fuse, Yu Irie, et al. "(Invited) Identification of a Self-Photosensitizing Hydrogen Atom Transfer Organocatalyst System." ECS Meeting Abstracts MA2023-01, no. 14 (2023): 1355. http://dx.doi.org/10.1149/ma2023-01141355mtgabs.

Full text

Abstract:

The carbon-hydrogen (C-H) bond is a fundamental chemical bond that constitutes organic molecules, and its direct conversion leads to highly efficient molecular synthesis. In recent years, the hydrogen atom transfer (HAT) catalysis using the energy of visible light, has been attracting attention. However, existing methods require the use of photoredox catalysts such as organic molecules with complex structures and expensive metal complexes. In this study, we developed an organocatalytic system that mimics the electron transfer process of enzymes in vivo and promotes functionalization of stable

APA, Harvard, Vancouver, ISO, and other styles

12

Zhou, Zhao-Zhao, Rui-Qiang Jiao, Ke Yang, Xi-Meng Chen, and Yong-Min Liang. "Photoredox/palladium co-catalyzed propargylic benzylation with internal propargylic carbonates." Chemical Communications 56, no. 85 (2020): 12957–60. http://dx.doi.org/10.1039/d0cc04986g.

Full text

Abstract:

The developed photo/palladium dual catalytic system provided a novel route to internal propargylic benzylation products. A radical coupling mechanism between the propargylic radical and benzyl radical was proposed.

APA, Harvard, Vancouver, ISO, and other styles

13

Pratt, Cameron J., R. Adam Aycock, Max D. King та Nathan T. Jui. "Radical α-C–H Cyclobutylation of Aniline Derivatives". Synlett 31, № 01 (2019): 51–54. http://dx.doi.org/10.1055/s-0039-1690197.

Full text

Abstract:

A catalytic system has been developed for the direct alkylation of α-C–H bonds of aniline derivatives with strained C–C σ-bonds. This method operates through a photoredox mechanism in which oxidative formation of aminoalkyl radical intermediates enables addition to a bicyclobutane derivative, giving rise to α-cyclobutyl N-alkylaniline products. This mild system proceeds through a redox- and proton-neutral mechanism and is operational for a range of substituted arylamine derivatives.

APA, Harvard, Vancouver, ISO, and other styles

14

Koohgard, Mehdi, Haniehsadat Karimitabar, and Mona Hosseini-Sarvari. "Visible-light-mediated semi-heterogeneous black TiO2/nickel dual catalytic C (sp2)–P bond formation toward aryl phosphonates." Dalton Transactions 49, no. 47 (2020): 17147–51. http://dx.doi.org/10.1039/d0dt03507f.

Full text

Abstract:

The combination of black TiO<sub>2</sub> nanoparticles (NPs) with a nickel catalyst provides a low-cost, sustainable, and reusable alternative photoredox/nickel system to a homogeneous counterpart (noble metals) in C(sp<sup>2</sup>)−P coupling reaction.

APA, Harvard, Vancouver, ISO, and other styles

15

Guillemard, Lucas, and Joanna Wencel-Delord. "When metal-catalyzed C–H functionalization meets visible-light photocatalysis." Beilstein Journal of Organic Chemistry 16 (July 21, 2020): 1754–804. http://dx.doi.org/10.3762/bjoc.16.147.

Full text

Abstract:

While aiming at sustainable organic synthesis, over the last decade particular attention has been focused on two modern fields, C–H bond activation, and visible-light-induced photocatalysis. Couplings through C–H bond activation involve the use of non-prefunctionalized substrates that are directly converted into more complex molecules, without the need of a previous functionalization, thus considerably reduce waste generation and a number of synthetic steps. In parallel, transformations involving photoredox catalysis promote radical reactions in the absence of radical initiators. They are cond

APA, Harvard, Vancouver, ISO, and other styles

16

Wilger, Dale J., Nathan J. Gesmundo, and David A. Nicewicz. "Catalytic hydrotrifluoromethylation of styrenes and unactivated aliphatic alkenes via an organic photoredox system." Chemical Science 4, no. 8 (2013): 3160. http://dx.doi.org/10.1039/c3sc51209f.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Claros, Miguel, Alicia Casitas, and Julio Lloret-Fillol. "Visible-Light Reductive Cyclization of Nonactivated Alkyl Chlorides." Synlett 30, no. 13 (2019): 1496–507. http://dx.doi.org/10.1055/s-0037-1611878.

Full text

Abstract:

Nonactivated alkyl chlorides are readily available and bench-stable feedstocks; however, they exhibit an inherent chemical inertness, in part, due to their large negative reduction potentials, which have precluded their widespread use as radical precursors in visible-light photocatalysis. Herein, we highlight some recent strategies for activating challenging organic halides under light irradiation, with special emphasis in C(sp3)–halide bonds. In this line, a brief summary of the reactivity of Vitamin B12, F430 cofactor and derivatives is required to comprehend the chemistry behind our develop

APA, Harvard, Vancouver, ISO, and other styles

18

Thullen, Scott M., and Tomislav Rovis. "A Mild Hydroaminoalkylation of Conjugated Dienes Using a Unified Cobalt and Photoredox Catalytic System." Journal of the American Chemical Society 139, no. 43 (2017): 15504–8. http://dx.doi.org/10.1021/jacs.7b09252.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Zhang, Hong-Hao, Jia-Jia Zhao та Shouyun Yu. "Enantioselective α-Allylation of Anilines Enabled by a Combined Palladium and Photoredox Catalytic System". ACS Catalysis 10, № 8 (2020): 4710–16. http://dx.doi.org/10.1021/acscatal.0c00871.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Zheng, Jun, and Bernhard Breit. "Regiodivergent Hydroaminoalkylation of Alkynes and Allenes by a Combined Rhodium and Photoredox Catalytic System." Angewandte Chemie 131, no. 11 (2019): 3430–35. http://dx.doi.org/10.1002/ange.201813646.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Zheng, Jun, and Bernhard Breit. "Regiodivergent Hydroaminoalkylation of Alkynes and Allenes by a Combined Rhodium and Photoredox Catalytic System." Angewandte Chemie International Edition 58, no. 11 (2019): 3392–97. http://dx.doi.org/10.1002/anie.201813646.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Ma, Wenchao, Dong Chen, Yuhong Ma, Li Wang, Changwen Zhao, and Wantai Yang. "Visible-light induced controlled radical polymerization of methacrylates with Cu(dap)2Cl as a photoredox catalyst." Polymer Chemistry 7, no. 25 (2016): 4226–36. http://dx.doi.org/10.1039/c6py00687f.

Full text

Abstract:

Under visible light irradiation, block copolymers of PPEGMA-b-PMMA with high molecular weights and narrow molecular weight distributions are obtained starting from a PPEGMA macroinitiator in the presence of the Cu(dap)<sub>2</sub>Cl/Me<sub>6</sub>TREN catalytic system.

APA, Harvard, Vancouver, ISO, and other styles

23

Kostromitin, Vladislav S., Artem A. Zemtsov, Vladimir A. Kokorekin, Vitalij V. Levin, and Alexander D. Dilman. "Atom-transfer radical addition of fluoroalkyl bromides to alkenes via a photoredox/copper catalytic system." Chemical Communications 57, no. 42 (2021): 5219–22. http://dx.doi.org/10.1039/d1cc01609a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Wilger, Dale J., Nathan J. Gesmundo, and David A. Nicewicz. "ChemInform Abstract: Catalytic Hydrotrifluoromethylation of Styrenes and Unactivated Aliphatic Alkenes via an Organic Photoredox System." ChemInform 44, no. 49 (2013): no. http://dx.doi.org/10.1002/chin.201349046.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Ghosh, Indrajit, Jagadish Khamrai, Aleksandr Savateev, Nikita Shlapakov, Markus Antonietti, and Burkhard König. "Organic semiconductor photocatalyst can bifunctionalize arenes and heteroarenes." Science 365, no. 6451 (2019): 360–66. http://dx.doi.org/10.1126/science.aaw3254.

Full text

Abstract:

Photoexcited electron-hole pairs on a semiconductor surface can engage in redox reactions with two different substrates. Similar to conventional electrosynthesis, the primary redox intermediates afford only separate oxidized and reduced products or, more rarely, combine to one addition product. Here, we report that a stable organic semiconductor material, mesoporous graphitic carbon nitride (mpg-CN), can act as a visible-light photoredox catalyst to orchestrate oxidative and reductive interfacial electron transfers to two different substrates in a two- or three-component system for direct twof

APA, Harvard, Vancouver, ISO, and other styles

26

Lopat’eva, Elena R., Igor B. Krylov, and Alexander O. Terent’ev. "t-BuOOH/TiO2 Photocatalytic System as a Convenient Peroxyl Radical Source at Room Temperature under Visible Light and Its Application for the CH-Peroxidation of Barbituric Acids." Catalysts 13, no. 9 (2023): 1306. http://dx.doi.org/10.3390/catal13091306.

Full text

Abstract:

TiO2 is one of the most promising heterogeneous photoredox catalysts employed in oxidative pollutant destruction, CO2 reduction, water splitting, disinfection, solar cell design and organic synthesis. Due to the wide bandgap of TiO2, visible light energy is not sufficient for its activation, and electron/hole pairs generated upon UV irradiation demonstrate limited selectivity for application in organic synthesis. Thus, the development of TiO2-based catalytic systems activated by visible light is highly attractive. In the present work we demonstrate the generation of t-BuOO• radicals from tert-

APA, Harvard, Vancouver, ISO, and other styles

27

Rostoll-Berenguer, Jaume, Gonzalo Blay, José Pedro, and Carlos Vila. "9,10-Phenanthrenedione as Visible-Light Photoredox Catalyst: A Green Methodology for the Functionalization of 3,4-Dihydro-1,4-Benzoxazin-2-Ones through a Friedel-Crafts Reaction." Catalysts 8, no. 12 (2018): 653. http://dx.doi.org/10.3390/catal8120653.

Full text

Abstract:

A visible-light photoredox functionalization of 3,4-dihydro-1,4-benzoxazin-2-ones through a Friedel-Crafts reaction with indoles using an inexpensive organophotoredox catalyst is described. The reaction uses a dual catalytic system that is formed by a photocatalyst simple and cheap, 9,10-phenanthrenedione, and a Lewis acid, Zn(OTf)2. 5W white LEDs are used as visible-light source and oxygen from air as a terminal oxidant, obtaining the corresponding products with good yields. The reaction can be extended to other electron-rich arenes. Our methodology represents one of the most valuable and sus

APA, Harvard, Vancouver, ISO, and other styles

28

Rouch, William D., Miao Zhang, and Ryan D. McCulla. "Conjugated polymers as photoredox catalysts: a new catalytic system using visible light to promote aryl aldehyde pinacol couplings." Tetrahedron Letters 53, no. 37 (2012): 4942–45. http://dx.doi.org/10.1016/j.tetlet.2012.06.144.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Guerrero, Isabel, Clara Viñas, Francesc Teixidor, and Isabel Romero. "Unveiling Non-Covalent Interactions in Novel Cooperative Photoredox Systems for Efficient Alkene Oxidation in Water." Molecules 29, no. 10 (2024): 2378. http://dx.doi.org/10.3390/molecules29102378.

Full text

Abstract:

A new cooperative photoredox catalytic system, [RuII(trpy)(bpy)(H2O)][3,3′-Co(8,9,12-Cl3-1,2-C2B9H8)2]2, 5, has been synthesized and fully characterized for the first time. In this system, the photoredox catalyst [3,3′-Co(8,9,12-Cl3-1,2-C2B9H8)2]− [Cl6-1]−, a metallacarborane, and the oxidation catalyst [RuII(trpy)(bpy)(H2O)]2+, 2 are linked by non-covalent interactions. This compound, along with the one previously synthesized by us, [RuII(trpy)(bpy)(H2O)][(3,3′-Co(1,2-C2B9H11)2]2, 4, are the only examples of cooperative molecular photocatalysts in which the catalyst and photosensitizer are no

APA, Harvard, Vancouver, ISO, and other styles

30

Mitsunuma, Harunobu, Xue Peng, Yuki Hirao, et al. "(Invited) Titanium-Catalyzed Intermolecular Radical Addition to Ketones Via Sp ³ C-H Bond Activation." ECS Meeting Abstracts MA2022-01, no. 13 (2022): 914. http://dx.doi.org/10.1149/ma2022-0113914mtgabs.

Full text

Abstract:

Tertiary alcohols are widely present in natural products, pharmaceuticals, and agrochemicals. Radical addition reaction to ketones is a simple and waste-free synthetic method for preparation of tertiary alcohols with high functional group tolerance. Therefore, direct radical addition reactions to ketones can be applied to a wider range of substrates. However, radical addition to carbonyl groups is a thermodynamically unfavored process, especially in the case of intermolecular radical addition to ketones, where the resulting alkoxy radical can easily undergo β-fragmentation to yield the startin

APA, Harvard, Vancouver, ISO, and other styles

31

Selvakumar, Sermadurai. "Synergistic Dual Photoredox and Chiral Hydrogen Bonding Catalysis: Recent Advances." Asian Journal of Organic Chemistry, August 23, 2023. http://dx.doi.org/10.1002/ajoc.202300374.

Full text

Abstract:

In the last two decades, chiral hydrogen bonding catalysis has been enormously utilized to trigger several valuable synthetic transformations. Similarly, modern day radical chemistry has witnessed the potency of visible light photoredox catalysis to generate radicals via single electron transfer pathway. Recently, their cooperative effect has proved to be a key strategy to access many elegant transformations that are only feasible under the synergistic action of these two catalytic systems. This dual catalytic system demonstrates high efficiency for introducing molecular complexity in an enant

APA, Harvard, Vancouver, ISO, and other styles

32

Li, Jinlian, Xing Chen, Shenxia Xie, Huabing Wang, Jiayu Mo, and Huawen Huang. "Photoredox/Bismuth Relay Catalysis Enabling Reductive Alkylation of Nitroarenes with Aldehydes." Chemistry – A European Journal, May 13, 2024. http://dx.doi.org/10.1002/chem.202401456.

Full text

Abstract:

The effective transition metal‐free photoredox/bismuth dual catalytic reductive dialkylation of nitroarenes with benzaldehydes has been reported. The nitroarene redution through visible light‐driven photoredox catalysis was integrated with subsequent reductive dialkylation of anilines under bismuth catalysis to enable the cascade reductive alkylation of nitroarenes with carbonyls. Salient features of this relay catalysis system include mild reaction conditions, no requirement for transition metal catalysts, easy handling, step‐economy, and high selectivity.

APA, Harvard, Vancouver, ISO, and other styles

33

Matsukuma, Kakeru, Masanori Tayu, Takumi Ogino, et al. "Photoredox/Sulfide Dual Catalysis for Modular Synthesis of Multi‐Substituted Furan Rings via Catalytic Indirect Reductive Quenching." Chemistry – An Asian Journal, January 6, 2025. https://doi.org/10.1002/asia.202401442.

Full text

Abstract:

The catalytic indirect reductive quenching method is facilitated by a combination of Ir(III) photoredox and sulfide dual‐catalysis system. This study demonstrated a method for synthesizing multi‐substituted furans by using a photoredox/sulfide dual‐catalysis system. This method enables the synthesis of various furan derivatives, including spirofurans and phthalans. The utility of this system was demonstrated through gram‐scale synthesis of the pharmaceutical molecule talopram. Mechanistic studies and density functional theory calculations suggested the formation of sulfonium species via sulfid

APA, Harvard, Vancouver, ISO, and other styles

34

Liu, Junjie, Yukun Chen, Hongping Zhao, and Weiming Yuan. "Nickel/photoredox dual-catalyzed reductive cross-coupling of aryl halides and aldehydes." Organic Chemistry Frontiers, 2024. http://dx.doi.org/10.1039/d3qo01927f.

Full text

Abstract:

A straightforward reductive cross-coupling of aryl halides and aldehydes to afford silyl-protected secondary alcohols is reported. The catalytic system features the use of nickel/photoredox dual catalysis and α-silylamine as a...

APA, Harvard, Vancouver, ISO, and other styles

35

Zhou, Yi, Yong-Qin He, Xiao-Yu Wang, et al. "Photoredox‐Enabled Manganese‐Catalyzed [2+2+2] Cycloaddition of Alkynes." Advanced Synthesis & Catalysis, February 7, 2024. http://dx.doi.org/10.1002/adsc.202400024.

Full text

Abstract:

Manganese (Mn) is the third most abundant transition metal on Earth and is known for its exceptional biocompatibility. The development of novel catalytic mode for Mn is of great significance to advancing organic synthesis. In this study, the first manganese (Mn)‐catalyzed [2+2+2] cycloaddition of alkynes is achieved with the aid of visible‐light photoredox catalysis. Photoredox catalysis is proposed to promote the transformation by in situ reduction of high‐valent Mn(II) complex to Mn(0) species, thereby initiating the reaction. Additionally, a photooxidation‐induced reductive ellimination ste

APA, Harvard, Vancouver, ISO, and other styles

36

Hou, Zhanfeng, Chuan Wan, Heming Jiang, et al. "Photocatalytic acylation of lysine screened by a microfluidic-based chemical robotic system." Green Chemistry, 2024. http://dx.doi.org/10.1039/d4gc03562c.

Full text

Abstract:

The application scope of various bioconjugation technologies has been expanded through the implementation of photoredox catalytic bioconjugation technology, establishing a novel biomolecular framework with exceptional residue selectivity. Herein, we report...

APA, Harvard, Vancouver, ISO, and other styles

37

Johansen, Christian M., Emily A. Boyd, and Jonas C. Peters. "Catalytic transfer hydrogenation of N ₂ to NH ₃ via a photoredox catalysis strategy." Science Advances 8, no. 43 (2022). http://dx.doi.org/10.1126/sciadv.ade3510.

Full text

Abstract:

Inspired by momentum in applications of reductive photoredox catalysis to organic synthesis, photodriven transfer hydrogenations toward deep (>2 e − ) reductions of small molecules are attractive compared to using harsh chemical reagents. Noteworthy in this context is the nitrogen reduction reaction (N 2 RR), where a synthetic photocatalyst system had yet to be developed. Noting that a reduced Hantzsch ester (HEH 2 ) and related organic structures can behave as 2 e − /2 H + photoreductants, we show here that, when partnered with a suitable catalyst (Mo) under blue light irradiation, HEH 2 f

APA, Harvard, Vancouver, ISO, and other styles

38

Hirose, Masami, Hina Sakaguchi, Ryoga Hashimoto, et al. "Benzoic Acid Serves as Precursor of Catalytic HAT Reagent in a Two‐Molecule Photoredox System." Chemistry – A European Journal, July 10, 2024. http://dx.doi.org/10.1002/chem.202402285.

Full text

Abstract:

The photoinduced regioselective HAT reactions of acetals, ethers, and alcohols using benzoic acids in a two‐molecule photoredox system led to the formation of new C–C bonds with alkenes under mild conditions. Aryl carboxy radicals generated from benzoic acids in a two‐molecule photoredox system can function as catalytic HAT reagents, even though an excess amount of a hydrogen donor substrate is required. Various acetals, ethers, alcohols, and alkenes can be employed in the photoreaction to provide both high yields of adducts and high recoveries of benzoic acids.

APA, Harvard, Vancouver, ISO, and other styles

39

Sittel, Steven, Robert Naumann, and Katja Heinze. "Molecular Rubies in Photoredox Catalysis." Frontiers in Chemistry 10 (April 7, 2022). http://dx.doi.org/10.3389/fchem.2022.887439.

Full text

Abstract:

The molecular ruby [Cr(tpe)2]3+ and the tris(bipyridine) chromium(III) complex [Cr(dmcbpy)3]3+ as well as the tris(bipyrazine)ruthenium(II) complex [Ru(bpz)3]2+ were employed in the visible light-induced radical cation [4+2] cycloaddition (tpe = 1,1,1-tris(pyrid-2-yl)ethane, dmcbpy = 4,4′-dimethoxycarbonyl-2,2′-bipyridine, bpz = 2,2′-bipyrazine), while [Cr(ddpd)2]3+ serves as a control system (ddpd = N,N′-dimethyl-N,N′-dipyridin-2-ylpyridine-2,6-diamine). Along with an updated mechanistic proposal for the CrIII driven catalytic cycle based on redox chemistry, Stern-Volmer analyses, UV/Vis/NIR

APA, Harvard, Vancouver, ISO, and other styles

40

Patehebieke, Yeersen, Rima Charaf, Kumar Bhaskar, et al. "PCET-Mediated Deconstructive Cross-Coupling of Aliphatic Alcohols." Chemical Science, 2025. https://doi.org/10.1039/d5sc00737b.

Full text

Abstract:

A practical deconstructive arylation of aliphatic alcohols has been developed using a synergistic photoredox proton-coupled electron transfer (PCET) and nickel dual catalytic system. The method efficiently generates alkyl radicals via...

APA, Harvard, Vancouver, ISO, and other styles

41

Nagula, Shankaraiah, Sravani Sana, Srinivas Reddy, et al. "Visible-light-mediated photocatalytic sequential N-arylation: An eco-friendly synthetic route to unsymmetrical di-arylamines and imatinib drug." Organic Chemistry Frontiers, 2023. http://dx.doi.org/10.1039/d3qo00894k.

Full text

Abstract:

Abstract: A sustainable protocol for the construction of unsymmetrical di-arylamines via photoredox-mediated dual catalytic copper/ ruthenium system has been established. This approach provides an easy access to medicinally relevant amines...

APA, Harvard, Vancouver, ISO, and other styles

42

Wang, Yue, Junhao Miao, Honglin Dong, et al. "A Photo- and Cobalt-Catalyzed Highly Selective and Divergent Hydrofunctionalization of 1,3-Dienes with Phenols." Chemical Science, 2025. https://doi.org/10.1039/d5sc00438a.

Full text

Abstract:

An applicable cobalt-hydride mediated selective, divergent hydroetherification and sequential hydroetherification/hydroarylation of dienes with simple phenol feedstocks under photoredox and cobalt catalytic system was developed. A variety of allyl aryl ethers...

APA, Harvard, Vancouver, ISO, and other styles

43

Pirovano, Valentina, ELISA BRAMBILLA, Giorgia Fanciullacci, and Giorgio Abbiati. "Cooperative Photoredox/Gold Catalysed Cyclization of 2-Alkynylbenzoates with Arenediazonium Salts: Synthesis of 3,4- disubstituted Isocoumarins." Organic & Biomolecular Chemistry, 2022. http://dx.doi.org/10.1039/d2ob01371a.

Full text

Abstract:

Several isocoumarins have been synthesized in good to excellent yields starting from 2-alkynylbenzoates and arenediazonium salts. The strategy involves a domino arylation/oxo-cyclization catalysed by a dual photoredox/gold catalytic system. The...

APA, Harvard, Vancouver, ISO, and other styles

44

Yang, Ju-Song, Xing-Yu Wang, Yong-Yao Li, Fu-Min Zhang, Xiao-Ming Zhang, and Yongqiang Tu. "Catalytic Asymmetric 1,4‐Hydrocarbonation of 1,3‐Enynes via Photoredox/Cobalt/Chromium Triple Catalysis." Angewandte Chemie, January 10, 2025. https://doi.org/10.1002/ange.202420563.

Full text

Abstract:

A synergistic photoredox/cobalt/chromium triple catalysis system for regioselective, enantioselective, and diastereoselective 1,4‐hydrocarbonation of readily available 1,3‐enyne precursors was explored, providing a modular synthetic platform for various trisubstituted axially chiral allenes bearing an extra central chirality. The protocol features a broad substrate scope, good functional group tolerance, excellent selectivity, and mild reaction conditions. Furthermore, a possible reaction mechanism is proposed based on numerous control experiments and density functional theory calculations.

APA, Harvard, Vancouver, ISO, and other styles

45

Yang, Ju-Song, Xing-Yu Wang, Yong-Yao Li, Fu-Min Zhang, Xiao-Ming Zhang, and Yongqiang Tu. "Catalytic Asymmetric 1,4‐Hydrocarbonation of 1,3‐Enynes via Photoredox/Cobalt/Chromium Triple Catalysis." Angewandte Chemie International Edition, January 10, 2025. https://doi.org/10.1002/anie.202420563.

Full text

Abstract:

A synergistic photoredox/cobalt/chromium triple catalysis system for regioselective, enantioselective, and diastereoselective 1,4‐hydrocarbonation of readily available 1,3‐enyne precursors was explored, providing a modular synthetic platform for various trisubstituted axially chiral allenes bearing an extra central chirality. The protocol features a broad substrate scope, good functional group tolerance, excellent selectivity, and mild reaction conditions. Furthermore, a possible reaction mechanism is proposed based on numerous control experiments and density functional theory calculations.

APA, Harvard, Vancouver, ISO, and other styles

46

Trienes, Sven, Jiawei Xu, and Lutz Ackermann. "Photoinduced C‒H arylation of 1,3-azoles via copper/photoredox dual catalysis." Chemical Science, 2024. http://dx.doi.org/10.1039/d4sc00393d.

Full text

Abstract:

The visible light-induced C‒H arylation of azoles has been accomplished by dual-catalytic system with the aid of an inexpensive ligand-free copper(I)-catalyst in combination with a suitable photoredox catalyst. An organic...

APA, Harvard, Vancouver, ISO, and other styles

47

Jia, Zongbin, Liang Cheng, Long Zhang та Sanzhong Luo. "Asymmetric C–H Dehydrogenative Alkenylation via a Photo-induced Chiral α‑Imino Radical Intermediate". Nature Communications 15, № 1 (2024). http://dx.doi.org/10.1038/s41467-024-48350-w.

Full text

Abstract:

AbstractThe direct alkenylation with simple alkenes stands out as the most ideal yet challenging strategy for obtaining high-valued desaturated alkanes. Here we present a direct asymmetric dehydrogenative α-C(sp3)-H alkenylation of carbonyls based on synergistic photoredox-cobalt-chiral primary amine catalysis under visible light. The ternary catalytic system enables the direct coupling of β-keto-carbonyls and alkenes through a cooperative radical addition-dehydrogenation process involving a chiral α-imino radical and Co(II)-metalloradical intermediate. A catalytic H-transfer process involving

APA, Harvard, Vancouver, ISO, and other styles

48

Chowdhury, Raghunath. "EosinY and Copper- Catalyzed Oxidative [2+3] Annulation of Glycine Esters with Oxiranes and Thiiranes Under Light Free Conditions." Organic & Biomolecular Chemistry, 2025. https://doi.org/10.1039/d5ob00148j.

Full text

Abstract:

Herein, we report an oxidative formal [2+3] cycloaddition reaction of glycine esters with oxiranes/thiiranes under non-photoredox conditions using the catalytic system consisting of eosin-Y, Cu(OAc)2 and HI. This one-pot protocol...

APA, Harvard, Vancouver, ISO, and other styles

49

Yang, Zhiyi, Chao Li, Peiqi Zhang, et al. "Twist‐Promoted Photoredox Catalysis in Metal‐Organic Frame‐work for Defluorination." Angewandte Chemie, June 7, 2025. https://doi.org/10.1002/ange.202511396.

Full text

Abstract:

The relatively short excited‐state lifetime is one main drawback of organic photosensitizers, resulting in their restricted catalytic capability and high catalyst loadings. We herein report the design of a twisted ligand N9,N9,N10,N10‐tetrakis[(1,1’‐biphenyl)‐4‐carboxylic acid]‐9,10‐anthracene diamine (H4TCPDA). Its twisted geometry significantly elongates the lifetime of charge‐transfer state as substantiated by detailed ultrafast transient absorption (TA) spectroscopic and electrochemical studies. Moreover, its rigid structure benefits the formation of highly crystalline Y‐TCPDA metal‐organi

APA, Harvard, Vancouver, ISO, and other styles

50

Yang, Zhiyi, Chao Li, Peiqi Zhang, et al. "Twist‐Promoted Photoredox Catalysis in Metal‐Organic Frame‐work for Defluorination." Angewandte Chemie International Edition, June 7, 2025. https://doi.org/10.1002/anie.202511396.

Full text

Abstract:

The relatively short excited‐state lifetime is one main drawback of organic photosensitizers, resulting in their restricted catalytic capability and high catalyst loadings. We herein report the design of a twisted ligand N9,N9,N10,N10‐tetrakis[(1,1’‐biphenyl)‐4‐carboxylic acid]‐9,10‐anthracene diamine (H4TCPDA). Its twisted geometry significantly elongates the lifetime of charge‐transfer state as substantiated by detailed ultrafast transient absorption (TA) spectroscopic and electrochemical studies. Moreover, its rigid structure benefits the formation of highly crystalline Y‐TCPDA metal‐organi

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!