Tetranuclear N-Heterocyclic Carbene Palladium Acetate—The Fast-Initiating Precatalyst of Suzuki Coupling DOI Open Access
Sylwia Ostrowska, Szymon Rogalski, Maciej Kubicki

и другие.

Catalysts, Год журнала: 2024, Номер 14(11), С. 836 - 836

Опубликована: Ноя. 20, 2024

A tetranuclear N-heterocyclic palladium carbene acetate, characterised by a [Pd]/[NHC] = 2/1 ratio, was synthesised and shown to be catalytically active in Suzuki coupling. Single crystal XRD studies of the complex revealed its unprecedented geometry, with presence three coordinated centres. The catalytic activity is significantly higher than that analogues containing same ligand. Preliminary have been carried out determine properties complex.

Язык: Английский

N-heterocyclic carbene-palladium complex immobilized on Co-MOF 74 microrods as a highly selective catalyst for Suzuki–Miyaura cross-coupling DOI Creative Commons
Duygu Hacıefendioğlu, Alï Tuncel

Reaction Kinetics Mechanisms and Catalysis, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

Язык: Английский

Процитировано

1

Pd–NHC (NHC = N-Heterocyclic Carbene)-Catalyzed B-Alkyl Suzuki Cross-Coupling of 2-Pyridyl Ammonium Salts by N–C Activation: Application to the Discovery of Agrochemical Molecular Hybrids DOI
Yanqing Gao,

Yuge Hu,

Jiuhui Ye

и другие.

Organic Letters, Год журнала: 2024, Номер 26(11), С. 2309 - 2314

Опубликована: Март 11, 2024

2-Alkylpyridines are a privileged scaffold throughout the realm of organic synthesis and play key role in natural products, pharmaceuticals, agrochemicals. Herein, we report first B-alkyl Suzuki cross-coupling 2-pyridyl ammonium salts to access functionalized 2-alkylpyridines. The use well-defined, operationally simple Pd-NHCs permits for an exceptionally broad scope challenging C–N with organoboranes containing β-hydrogen, representing novel method discovery highly sought-after molecules plant protection.

Язык: Английский

Процитировано

3

Earth‐Abundant Recyclable Magnetic Iron Oxide Nanoparticles for Green‐light Mediated C−H Arylation in Heterogeneous Phase DOI

Tanumoy Mandal,

Ashwin Chaturvedi,

Aznur Azim

и другие.

Chemistry - A European Journal, Год журнала: 2024, Номер 30(44)

Опубликована: Май 24, 2024

A magnetically isolable iron oxide nanoparticles is introduced as an efficient heterogeneous photocatalyst for non-directed C-H arylation employing aryl diazonium salts the precursors. This first-row transition metal-based revealed versatile activities and applicable to a wide range of substrates, demonstrating brilliant efficacy superior recyclability. Detailed catalytic characterization describes physical properties redox behavior Fe-catalyst. Adequate control experiments helped establish radical-based mechanism arylation.

Язык: Английский

Процитировано

3

Full-color emission of fluorinated benzothiadiazole-based D–A–D fluorophores and their bioimaging applications DOI Creative Commons
Sihong Chen,

Xi-Ying Cao,

Pengtao Hu

и другие.

Materials Advances, Год журнала: 2023, Номер 4(24), С. 6612 - 6620

Опубликована: Янв. 1, 2023

By modulating donor and acceptor units, serial fluorinated benzothiadiazole-based full-color fluorophores with various luminescence properties, such as DSE, ACQ AIEE effects, are developed. Importantly, red emitter 3m can be used in bioimaging.

Язык: Английский

Процитировано

6

Purple Light-Promoted Coupling of Bromopyridines with Grignard Reagents via SET DOI
Xingyu Lei, Yihan Wang, Shanshan Ma

и другие.

The Journal of Organic Chemistry, Год журнала: 2024, Номер 89(10), С. 7148 - 7155

Опубликована: Май 8, 2024

Alkyl- and arylpyridines 2,2′-bipyridines are conventionally prepared by Minisci reactions of pyridines transition metal-catalyzed coupling halopyridines. Herein, purple light-promoted radical 2- or 4-bromopyridines with Grignard reagents in Et2O a mixture tetrahydrofuran regular glassware without the need for metal catalyst were disclosed first time. Methyl, primary secondary alkyl, cycloalkyl, aryl, heteroaryl, pyridyl, alkynyl compatible protocol. As result, alkyl- easily prepared. Single electron transfer from reagent to bromopyridine was stimulated light. An extruded dimerization worked as catalyst. Light on/off experiments indicated that constant irradiation required product formation. Studies clock substrates verified involvement pyridyl noninvolvement an alkyl aryl reagent. The available proof supports photoinduced SRN mechanism new reactions.

Язык: Английский

Процитировано

2

A Review on the Recent Progress of Layered Double Hydroxides (LDHs)-based Catalysts for Heterocyclic Synthesis DOI

Khadija El Farouki,

Marieme Kacem,

Mustapha Dib

и другие.

Current Organocatalysis, Год журнала: 2023, Номер 11(2), С. 154 - 174

Опубликована: Окт. 31, 2023

Over the past decade, heterocyclic compounds and their derivatives have emerged as promising substances with potential pharmacological applications due to interesting biological properties. The significance of in drug discovery development is evident from fact that a majority drugs pharmaceutical market incorporate active or ingredients. Various synthetic methods advancements been devised prepare these using diverse catalysts under mild conditions. Layered double hydroxides (LDHs)-based materials gained considerable attention across different fields, usability can be significantly enhanced via selection metal cations, molar ratios, surface complexation, intercalation modifications. synthesis application LDH-based garnered increasing interest exceptional Moreover, found extensive use heterogeneous numerous compounds. This review presents latest developments catalytic solid compounds, covering literature published 2018 2023. Keywords: materials, catalysis, catalyst, synthesisLayered

Язык: Английский

Процитировано

4

Synthesis of Functionalized Indoles by an Iridium-Catalyzed N–H Insertion Cascade: Nucleophilic Cyclization of Naphthylamines with α-Diazocarbonyl Compounds DOI
Xiaogang Wang, Chi Yang, Di Chen

и другие.

The Journal of Organic Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 28, 2024

A novel iridium-catalyzed [3 + 2] annulation of naphthylamines and α-diazocarbonyl compounds was developed for the rapid assembly densely functionalized indoles. This new catalytic process represents first example a cascade intramolecular nucleophilic cyclization by N-H insertion amines. Various could be obtained in high yields with excellent functional group tolerance. The reaction affords valuable indole derivatives, enabling expedient access to heterocyclic analogues not easily accessible other methods.

Язык: Английский

Процитировано

1

Structural and catalytic studies of Six-Membered amino N-Heterocyclic carbene palladium (II) complexes with a triazine backbone for Suzuki coupling reaction DOI
Ming‐Tsz Chen, Cheng‐Chun Huang, Ching‐Wei Chang

и другие.

Inorganica Chimica Acta, Год журнала: 2024, Номер unknown, С. 122466 - 122466

Опубликована: Ноя. 1, 2024

Язык: Английский

Процитировано

0

Weakly-Activated Phenol Derivatives as New Green Electrophilic Partners in Suzuki–Miyaura and Related C-C Couplings DOI Creative Commons

Jules Perney,

Alexandre Humblot-Negri,

Carlos Vaca‐García

и другие.

Molecules, Год журнала: 2024, Номер 30(1), С. 51 - 51

Опубликована: Дек. 26, 2024

In recent years, there has been growing interest in the development of greener alternatives to traditional reagents used carbon–carbon coupling reactions, particularly response environmental concerns. The commonly aryl halides, despite being highly reactive Suzuki–Miyaura (SMC), pose significant risks. As a result, research shifted towards exploring use phenols, which are widely accessible and environmentally benign. However, phenols considerably less due poor leaving group properties hydroxyl group, necessitating prior activation facilitate their reactions. This work aims review investigations on strategies for focusing application related C-C couplings. addition, exploration potential conducting step “in situ” will also be discussed. We hope that this article pave way more sustainable efficient methodologies, addressing both ecological practical challenges organic synthesis.

Язык: Английский

Процитировано

0

Tetranuclear N-Heterocyclic Carbene Palladium Acetate—The Fast-Initiating Precatalyst of Suzuki Coupling DOI Open Access
Sylwia Ostrowska, Szymon Rogalski, Maciej Kubicki

и другие.

Catalysts, Год журнала: 2024, Номер 14(11), С. 836 - 836

Опубликована: Ноя. 20, 2024

A tetranuclear N-heterocyclic palladium carbene acetate, characterised by a [Pd]/[NHC] = 2/1 ratio, was synthesised and shown to be catalytically active in Suzuki coupling. Single crystal XRD studies of the complex revealed its unprecedented geometry, with presence three coordinated centres. The catalytic activity is significantly higher than that analogues containing same ligand. Preliminary have been carried out determine properties complex.

Язык: Английский

Процитировано

0