Catalytic Application of Cs‐Substituted Phosphotungstic Acid (CsxH3‐xPW12O40)‐Mesoporous Zirconium Phosphate (m‐ZrP) Nanocomposite Towards Synthesis of Structurally Diverse Tetrazole Moieties DOI

Kanyanjali Samal,

Braja Gopal Mishra, Anita Pati

и другие.

ChemistrySelect, Год журнала: 2024, Номер 9(41)

Опубликована: Окт. 28, 2024

Abstract The rational design of a high surface area heterogeneous nanocomposite catalyst with well‐defined acidic sites and structural porosity is promising approach potential application in expeditious synthesis biologically active molecules/scaffolds. In this work, mesoporous zirconium phosphate (m‐ZrP) was synthesized through hydrothermal process used as porous matrix for dispersion cesium‐exchanged phosphotungstic acid (Cs x H 3‐ PW 12 O 40 ) nanoparticles to prepare Cs ‐mZrP systems. Various characterization techniques, including XRD, UV–vis‐DRS, FTIR, FESEM, HRTEM, TGA‐DTA, BET, TPD, were understand the structural, morphological, properties composites. XRD analysis revealed presence m‐ZrP cubic crystalline phases materials. A microscopic study indicated existence rod‐shaped morphology that formed by coalescence large number spherical diameters between 150 200 nm. over results significant enhancement medium strong sites, maximum observed 0.5 ‐PTA‐mZrP composite (0.406 mmol g −1 ). catalytic activity nanocomposites evaluated rapid tetrazole derivatives [3 + 2] cycloaddition reactions substituted nitrile NaN 3 under mild conditions. detailed optimization use DMF media afforded 90% yield at 120 °C. Reaction kinetics suggested optimal exhibited highest reaction rate 2.06 × 10 −3 h m −2 towards formation. Structurally diverse purity conditions using catalyst.

Язык: Английский

Polystyrene-Bound AlCl3 - a Catalyst for the Solvent-Free Synthesis of Aryl-Substituted Tetrazoles DOI Creative Commons
Max Schmallegger,

Mathias Wiech,

Sebastian Soritz

и другие.

Catalysis Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

We present photopolymerized polystyrene as a support for AlCl3, which is used the synthesis of tetrazoles under solvent-free conditions.

Язык: Английский

Процитировано

0
Copper complex of bis(pyridin-3-ylmethyl)carbamimidothioate on mesoporous KIT-6 as a homoselective and stable nanocatalyst for the synthesis of tetrazoles DOI

Mitra Darabi,

Mohsen Nikoorazm, Bahman Tahmasbi

и другие.

Inorganic Chemistry Communications, Год журнала: 2025, Номер unknown, С. 114454 - 114454

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
A Recyclable Heterogeneous Cu/Co/Fe Trimetallic Oxide Nanocatalyst for the Synthesis of 5-Substituted-1H-Tetrazoles DOI
Fatemeh Abrishami, Marzieh Daryanavard,

Soraya Baharvand

и другие.

Deleted Journal, Год журнала: 2024, Номер 48(3), С. 599 - 608

Опубликована: Май 4, 2024

5-Substituted-1H-tetrazoles were synthesized via the [3 + 2] cycloaddition of NaN3 and several nitriles using Cu1-xCoxFe2O4 (x = 0, 0.25, 0.5, 0.75, 1) nanocatalysts in N,N-dimethylformamide (DMF) at 120 °C. The Cu0.5Co0.5Fe2O4 nanospinel ferrite is most active nanocatalyst comparison to other prepared nanocatalysts. This was easily separated from reaction mixture an external magnet reused for five cycles without any appreciable loss catalytic activity. cost-effective easy availability catalyst, simple methodology, high yield, workup are extra advantages this method. structural characteristics catalyst investigated by scanning electron microscopy, X-ray diffraction, vibrating sample magnetometer analyses.

Язык: Английский

Процитировано

2
Zirconium Phosphates and Phosphonates: Applications in Catalysis DOI Open Access
Anna Donnadio, Monica Pica, Morena Nocchetti

и другие.

Catalysts, Год журнала: 2024, Номер 14(10), С. 733 - 733

Опубликована: Окт. 19, 2024

This review covers recent advancements in the use of zirconium phosphates and phosphonates (ZrPs) as catalysts or catalyst supports for a variety reactions, including biomass conversion, acid–base catalysis, hydrogenation, oxidation, C-C coupling from 2015 to present. The discussion emphasizes intrinsic catalytic properties ZrPs, focusing on how surface acidity, hydrophobic/hydrophilic balance, textural properties, particle morphology influence their performance across various reactions. Additionally, this thoroughly examines ZrPs species, ranging organometallic complexes metal ions noble metals oxide nanoparticles. In these applications, not only enhance dispersion stabilization active species but also facilitate recovery reuse due robust immobilization solid support. dual functionality underscores importance promoting efficient, selective, sustainable processes, making them essential advancement green chemistry.

Язык: Английский

Процитировано

1
Catalytic Application of Cs‐Substituted Phosphotungstic Acid (CsxH3‐xPW12O40)‐Mesoporous Zirconium Phosphate (m‐ZrP) Nanocomposite Towards Synthesis of Structurally Diverse Tetrazole Moieties DOI

Kanyanjali Samal,

Braja Gopal Mishra, Anita Pati

и другие.

ChemistrySelect, Год журнала: 2024, Номер 9(41)

Опубликована: Окт. 28, 2024

Abstract The rational design of a high surface area heterogeneous nanocomposite catalyst with well‐defined acidic sites and structural porosity is promising approach potential application in expeditious synthesis biologically active molecules/scaffolds. In this work, mesoporous zirconium phosphate (m‐ZrP) was synthesized through hydrothermal process used as porous matrix for dispersion cesium‐exchanged phosphotungstic acid (Cs x H 3‐ PW 12 O 40 ) nanoparticles to prepare Cs ‐mZrP systems. Various characterization techniques, including XRD, UV–vis‐DRS, FTIR, FESEM, HRTEM, TGA‐DTA, BET, TPD, were understand the structural, morphological, properties composites. XRD analysis revealed presence m‐ZrP cubic crystalline phases materials. A microscopic study indicated existence rod‐shaped morphology that formed by coalescence large number spherical diameters between 150 200 nm. over results significant enhancement medium strong sites, maximum observed 0.5 ‐PTA‐mZrP composite (0.406 mmol g −1 ). catalytic activity nanocomposites evaluated rapid tetrazole derivatives [3 + 2] cycloaddition reactions substituted nitrile NaN 3 under mild conditions. detailed optimization use DMF media afforded 90% yield at 120 °C. Reaction kinetics suggested optimal exhibited highest reaction rate 2.06 × 10 −3 h m −2 towards formation. Structurally diverse purity conditions using catalyst.

Язык: Английский

Процитировано

0