Advancements in Pd-Based Supported Porous Nanocatalysts for the C-C Cross-Coupling Reactions DOI Open Access
Debabrata Chakraborty, Asim Bhaumik

Catalysts, Journal Year: 2024, Volume and Issue: 15(1), P. 16 - 16

Published: Dec. 28, 2024

Palladium (Pd) is a 4d transition metal with electronic configuration [Kr] 4d10 5s0, and it one of the most widely studied metals in periodic table due to its versatile catalytic role organic synthesis. The choice ligands that can coordinate Pd sites plays crucial progress reaction. Due coexistence multiple oxidation states (Pd(0)/Pd(II)), active catalysts participate various stages coupling Pd-catalyzed C-C reactions proceed through four steps: (1) oxidative addition reactant site, (2) transmetallation, (3) rearrangements ligand centers (4) reductive elimination products. For heterogeneous nanocatalysts, are often strongly bound (chelated) solid catalyst surfaces. In this review, we have highlighted advancements made nanocatalysts an emphasis on types different classes porous solids, which could ligate via strong covalent bonds. high specific surface areas small these provide larger number thus facilitate Mechanistic aspects cross-coupling discussed context structure–reactivity relationship.

Language: Английский

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
Greener media for nano catalysts in Suzuki Miyaura reaction DOI
Sharda Pasricha,

Sachidanand,

Abhay Srivastava

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 528, P. 216431 - 216431

Published: Jan. 9, 2025

Language: Английский

Citations

1
Novel advancements in synthesis, modulation, and potential applications of conjugated microporous polymer-based materials DOI Creative Commons

Hamid Ali,

Obaid Iqbal,

Muhammad Sadiq

et al.

Nano Materials Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

0
Pd nanoparticles and anionic Pd catalyst: Potent catalyst for Heck reaction DOI Creative Commons
Yavar Ahmadi,

Sima Majidi

Results in Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 102173 - 102173

Published: March 1, 2025

Language: Английский

Citations

0
Construction of ionic cavities in porous aromatic frameworks for palladium immobilization and effective catalysis DOI

Yuhui Zhai,

Zhaofu Zhang,

Hengtao Lei

et al.

Journal of Materials Chemistry A, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A strategy is presented to construct a porous aromatic framework (PAF-282) with ionic cavities for palladium immobilization and effective Suzuki–Miyaura coupling reactions.

Language: Английский

Citations

0
A new copper complex of lysine on mesoporous KIT-6 as a robust and homoselective catalyst in the synthesis of tetrazoles DOI

Elham Mohseni,

Arash Ghorbani‐Choghamarani, Bahman Tahmasbi

et al.

Journal of Porous Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 26, 2024

Language: Английский

Citations

2
Palladium Nanoparticle Catalyzed Synthesis of Indoles via intramolecular Heck Cyclisation DOI
Debasish Sarmah, Anup Choudhury, Utpal Bora

et al.

Organic & Biomolecular Chemistry, Journal Year: 2024, Volume and Issue: 22(31), P. 6419 - 6431

Published: Jan. 1, 2024

The palladium( ii )-PEG 400 system offers efficient synthesis of indoles from N -vinyl and -allyl-2-haloanilines, showcasing high activity reusability due to in situ Pd nanoparticle generation.

Language: Английский

Citations

1
Functionalized corn stalk carboxymethyl cellulose and mesoporous silica SBA-15 composite hydrogel-immobilized lipase for the resolution of racemic ibuprofen ethyl ester DOI Creative Commons
Hong Zhang, Wenbin Liu, Lei Wang

et al.

Green Chemistry Letters and Reviews, Journal Year: 2024, Volume and Issue: 17(1)

Published: April 22, 2024

The immobilization of enzymes is an important strategy to improve their stability and reusability. However, it often comes with a trade off reduced biological activity catalytic efficiency. In this study, composite hydrogel based on corn stalk carboxymethyl cellulose, acrylic acid, mesoporous silica SBA-15 was developed as support for the lipase from Pseudomonas S.P. (PSL). surface morphology functional properties hydrogels were investigated by scanning electron microscopy, Fourier transform infrared, X-ray diffraction simultaneous thermal analyzer, respectively. materials had large number mesopores macropores present in wall sheet. network structure that diffusion resistance substrate improved accessibility enzyme. immobilized PSL exhibited high enantioselectivity (E value: 88.2) enzyme (316.8 µmol/g/min) preparation (S)-ibuprofen enzymatic hydrolytic resolution racemic ibuprofen ethyl ester. This prepared novel promising supporting matrix enzymes.

Language: Английский

Citations

1
Toxicity of the mixture of nanoparticles to algae–bacteria consortia in OECD media DOI
Samridhi Rana, Arun Kumar

Environmental Science Nano, Journal Year: 2024, Volume and Issue: 11(7), P. 3033 - 3052

Published: Jan. 1, 2024

Toxicity trend of 0.1 mg L −1 NPs in consortia: CuO > ZnO + ZnO. At , NP toxic effect was antagonistic and resulted a higher decrease bacterial count than algal count. Growth consortia mixture up to is possible.

Language: Английский

Citations

0
Deconvoluting Substrates, Support, and Temperature Effects on Leaching and Deactivation of Pd Catalysts: An In Situ Study in Flow DOI Creative Commons
Oliver J. Newton, Matthew J. Takle, Jeffery Richardson

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(13), P. 9678 - 9686

Published: June 13, 2024

Leaching behavior of three different Pd heterogeneous catalysts (PdEnCat 30, FibreCat FC1001, and Pd/Al2O3) during the Heck reaction iodobenzene methyl acrylate, in presence triethylamine, was compared using a tandem flow reactor. While leaching observed all cases, Pd/Al2O3 appeared to be most robust, showing little/no at ambient temperature. The leached species also appear display catalytic activities. With slight modification reactor, caused by individual components mixture can assessed separately. For polymer-supported catalysts, triethylamine largest amount leaching, even 30 °C. In contrast, from only 90 Variations were ascribed differences immobilization methods.

Language: Английский

Citations

0