Aminopropylimidazole as an Advantageous Coating in the Synthesis of Functionalized Magnetite Nanoparticles DOI Creative Commons
Alexandrina Nan, Iolanda-Veronica Ganea, Sergiu Macavei

et al.

Nanomaterials, Journal Year: 2021, Volume and Issue: 11(12), P. 3276 - 3276

Published: Dec. 2, 2021

Implementing new methods to prepare magnetite nanoparticles with a covered or uncovered surface has been, and still is, significant challenge. In this work, we describe very clear effortless way for the preparation of using two types bases, namely: 1-(3-aminopropyl)imidazole sodium hydroxide. Fourier transform infrared spectroscopy (FTIR) served as tool structural investigation as-prepared nanoparticles. The morphology samples was investigated Transmission Electron Microscopy (TEM). Comprehensive high-resolution X-ray photoelectron investigations (XPS) were applied an effective analyzing composition various magnetic Further polymer linkage accomplished poly(benzofuran-co-arylacetic acid) on amino-functionalized aminopropylimidazole-containing findings are promising biomedicine, catalysis, nanotechnology applications.

Language: Английский

Suzuki–Miyaura cross coupling reaction: recent advancements in catalysis and organic synthesis DOI
Brijesh S. Kadu

Catalysis Science & Technology, Journal Year: 2021, Volume and Issue: 11(4), P. 1186 - 1221

Published: Jan. 1, 2021

Suzuki–Miyaura cross coupling reaction (SMCR) – A milestone in the synthesis of C–C coupled compounds.

Language: Английский

Citations

145
Polymeric Dental Nanomaterials: Antimicrobial Action DOI Open Access
Pavel Yudaev, В. П. Чуев,

Bogdan Klyukin

et al.

Polymers, Journal Year: 2022, Volume and Issue: 14(5), P. 864 - 864

Published: Feb. 22, 2022

This review aims to describe and critically analyze studies published over the past four years on application of polymeric dental nanomaterials as antimicrobial materials in various fields dentistry. Nanoparticles are promising additives restoration materials. According data, composites based silver nanoparticles, zinc(II), titanium(IV), magnesium(II), copper(II) oxide chitosan calcium phosphate or fluoride nanodiamonds can be used therapy endodontics. Composites with nanoparticles hydroxyapatite bioactive glass proved low efficiency for these fields. The applicable orthodontics include nanodiamonds, titanium(IV) zinc(II) glass, yttrium(III) nanoparticles. periodontics, silver, chitosan, employed implantology prosthetics. also utilized maxillofacial surgery manufacture prostheses. halloysite nanotubes field denture calcium(II) therapeutic dentistry tooth restoration.

Language: Английский

Citations

51
Pd-Catalyzed Cross-Couplings: On the Importance of the Catalyst Quantity Descriptors, mol % and ppm DOI Creative Commons
Christopher S. Horbaczewskyj, Ian J. S. Fairlamb

Organic Process Research & Development, Journal Year: 2022, Volume and Issue: 26(8), P. 2240 - 2269

Published: July 11, 2022

This Review examines parts per million (ppm) palladium concentrations in catalytic cross-coupling reactions and their relationship with mole percentage (mol %). Most studies chemistry have historically focused on the concentration ratio between (pre)catalyst limiting reagent (substrate), expressed as mol %. Several recent papers outlined use of "ppm level" an alternative means describing reaction systems. led us to delve deeper into literature assess whether is a practically useful descriptor catalyst quantities palladium-catalyzed reactions. Indeed, we conjectured that many could, unknowingly, employed low levels" (pre)catalyst, generally, what would spread ppm look like across selection reported vast array literature. In few selected examples, examined other metal systems for comparison palladium.

Language: Английский

Citations

46
Synthesis of N,N′-alkylidene bisamides and Suzuki–Miyaura coupling reaction derivatives with Pd organometallic catalyst anchored to channels of mesoporous silica MCM-41 DOI Creative Commons
Sulieman Ibraheem Shelash Al‐Hawary, Raed Obaid Saleh, Ahmed Rafiq AlBajalan

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: April 2, 2024

Abstract At first, an organometallic catalyst namely, Pd-DPyE@MCM-41@MNP was prepared through magnetic (Fe 3 O 4 ) nanoparticles-doped into channels of mesoporous silica MCM-41 and then, anchoring a novel complex composed di(4-pyridyl)ethylene palladium on the inner surface support. This immobilized successfully identified via VSM, ICP-OES, TEM, FTIR, TGA, SEM, BET, XRD, EDX elemental mapping analyses. After that, it used as versatile, heterogeneous, magnetically reproducible in generation N,N ′-alkylidene bisamides ( 1a-13a , 8–20 min, 90–98%, 50 °C, solvent-free) Suzuki–Miyaura coupling (SMC) reaction derivatives 1b-26b 10–140 86–98%, 60 PEG-400). The VSM plot displays that this nanocatalyst can be easily recycled by applying external field. In both synthetic paths, reused at least seven times without leaching significantly reducing its catalytic performance. Also, stability heterogeneous nature were approved ICP-OES technique hot filtration test.

Language: Английский

Citations

13
Heterogeneous Iron-Based Catalysts for Organic Transformation Reactions: A Brief Overview DOI Creative Commons
Manash J. Baruah,

Rupjyoti Dutta,

Magdi E. A. Zaki

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(13), P. 3177 - 3177

Published: July 3, 2024

Iron (Fe) is considered to be one of the most significant elements due its wide applications. Recent years have witnessed a burgeoning interest in Fe catalysis as sustainable and cost-effective alternative noble metal organic synthesis. The abundance low toxicity Fe, coupled with competitive reactivity selectivity, underscore appeal for A lot catalytic reactions been performed using heterogeneous catalysts oxide hybridized support systems like aluminosilicates, clays, carbonized materials, oxides or polymeric matrices. This review provides comprehensive overview latest advancements Fe-catalyzed transformation reactions. Highlighted areas include cross-coupling reactions, C-H activation, asymmetric catalysis, cascade processes, showcasing versatility across spectrum synthetic methodologies. Emphasis placed on mechanistic insights, elucidating underlying principles governing iron-catalyzed Challenges opportunities field are discussed, providing roadmap future research endeavors. Overall, this illuminates transformative potential driving innovation sustainability chemistry, implications drug discovery, materials science, beyond.

Language: Английский

Citations

12
Synthesis, characterization, DFT quantum chemical calculations and catalytic properties of azobenzene-bearing Schiff base palladium(II) complexes for the Suzuki-Miyaura Cross-Coupling reaction in aqueous solvent DOI

Ayşe İnan,

Ali Burak Sünbül,

Sümeyya Seri̇n

et al.

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: unknown, P. 141296 - 141296

Published: Jan. 1, 2025

Language: Английский

Citations

1
Overview on magnetically recyclable ferrite nanoparticles: synthesis and their applications in coupling and multicomponent reactions DOI Creative Commons
Runjhun Tandon, Nitin Tandon, Shripad M. Patil

et al.

RSC Advances, Journal Year: 2021, Volume and Issue: 11(47), P. 29333 - 29353

Published: Jan. 1, 2021

Applications of ferrite nanoparticles in various chemical transformations.

Language: Английский

Citations

52
Enzyme-functionalized magnetic framework composite fabricated by one-pot encapsulation of lipase and Fe3O4 nanoparticle into metal–organic framework DOI
Yuan Ji,

Zhengzhang Wu,

Peng Zhang

et al.

Biochemical Engineering Journal, Journal Year: 2021, Volume and Issue: 169, P. 107962 - 107962

Published: Feb. 17, 2021

Language: Английский

Citations

45
Confining Natural/Mimetic Enzyme Cascade in an Amorphous Metal–Organic Framework for the Construction of Recyclable Biomaterials with Catalytic Activity DOI
Yuan Ji, Wanning Gao, Shilin Zhang

et al.

Langmuir, Journal Year: 2022, Volume and Issue: 38(3), P. 927 - 936

Published: Jan. 12, 2022

Integrating nanozymes with natural enzymes to form cascade reactions is one of the most promising ways develop biocatalysts versatile performance; however, applicability typically hampered by instability and hindrance mass transfer in host environment. Utilizing amorphous ZIF-90 (aZIF-90) as a material, herein, we have reported one-pot way encapsulate glucose oxidase (GOx) magnetic nanoparticles (MNP) GOx/MNP@aZIF-90. We reasoned that structure not only provides protected environment confine reaction but also generates mesopores internal voids improve performance enzymatic cascade. The catalytic activity aZIF-90 was almost 4 times higher than crystalline composites, residual 80% after being stored for 9 days. This first time GOx MNP were simultaneously confined mesopores, which suggested an metal-organic framework development

Language: Английский

Citations

32
Controlled Synthesis of Palladium Nanocubes as an Efficient Nanocatalyst for Suzuki–Miyaura Cross-Coupling and Reduction of p-Nitrophenol DOI
Swarnalata Swain,

M. B. Bhavya,

Vishal Kandathil

et al.

Langmuir, Journal Year: 2020, Volume and Issue: 36(19), P. 5208 - 5218

Published: April 22, 2020

Anisotropic nanocatalysts have attracted considerable attention in comparison to bulk/nanocatalysts for their enhanced activity and reactivity. The demand toward anisotropic palladium (Pd) nanostructures has increased rapidly the field of catalysis. Pd is a well-known active catalyst several carbon–carbon (C–C) cross-coupling reactions; among them, Suzuki–Miyaura reaction one most versatile dominant methods constructing extraordinarily useful unsymmetrical biaryls also hydrogenation organic contaminants like p-nitrophenol (p-NP). This paper provides brief explanation about controlled synthesis, characterization, catalytic well-defined nanocubes (Pd NCs) prepared by seed-mediated method. synthesized monodispersed NCs were characterized spectroscopic microscopic tools such as UV–visible, XRD, FESEM, HRTEM, EDS analyses. proved an efficient reactions p-NP reduction. shows activity, greater stability, higher selectivity with remarkable recyclability up 92% five consecutive cycles. performance was studied reduction contaminant p-NP, which showed excellent screening 99% conversion 6 min.

Language: Английский

Citations

42