Novel neodymium complex on MCM‐41 magnetic nanocomposite as a practical, selective, and returnable nanocatalyst in the synthesis of tetrazoles with antifungal properties in agricultural

Applied Organometallic Chemistry, Год журнала: 2023, Номер 37(4)

Опубликована: Янв. 14, 2023

This project reports a simple procedure for the synthesis and characterization of neodymium on MCM‐41 magnetic nanoparticles (MNPs) as reusable nanocatalyst. First, magnetite (Fe 3 O 4 ) MNPs were prepared by chemical co‐precipitation from FeCl hexahydrate 2 tetrahydrate in basic NH solution. At second step, nanocomposite (MCM‐41 MNC) was Fe doping into mesoporous channels. third novel Schiff base complex immobilized MNC. fourth this catalyst (Nd‐LArg‐5BrSalen@MNC) used practicable magnetically recoverable nanocatalyst homoselective tetrazoles. characterized via several analysis, example, TGA, TEM, UV, SEM, FT‐IR, SEM‐EDS, VSM, ICP, XRD, WDX, BET. All tetrazole products synthesized with high yield short time. Despite catalytic activity neodymium, it has rarely organic compounds. compounds identified 1 H NMR, physical properties. Nd‐LArg‐5BrSalen@MNC displays activity, good selectivity, stability, more important facile separation. can be isolated again times consecutively without considerable loss its activity. The recycled EDS, FT‐IR techniques showed match fresh catalyst. Also, antifungal some derivatives studied against Fusarium oxysporum (rot disease chickpea root) Botrytis cinerea (gray mold strawberry) using paper disk method PDA culture medium.

Язык: Английский

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Immobilization of Ni(ii) complex on the surface of mesoporous modified-KIT-6 as a new, reusable and highly efficient nanocatalyst for the synthesis of tetrazole and pyranopyrazole derivatives

RSC Advances, Год журнала: 2023, Номер 13(18), С. 12572 - 12588

Опубликована: Янв. 1, 2023

In this paper, KIT-6@SMTU@Ni was successfully synthesized via a new method of Ni(ii) complex stabilization on modified mesoporous KIT-6, as novel and green heterogeneous catalyst. The obtained catalyst (KIT-6@SMTU@Ni) characterized using Fourier transform infrared spectroscopy (FT-IR), Brunauer-Emmett-Teller (BET) calculation, X-ray diffraction (XRD), atomic absorption (AAS), energy-dispersive (EDS), mapping, thermogravimetric analysis (TGA) techniques scanning electron microscopy (SEM). After complete characterization the catalyst, it used for synthesis 5-substituted 1H-tetrazoles pyranopyrazoles. Moreover, tetrazoles were from benzonitrile derivatives sodium azide (NaN3). All tetrazole products with high TON, TOF excellent yields (88-98%) in reasonable time (0.13-8 h), demonstrating efficiency practicality Furthermore, pyranopyrazoles prepared through condensation reaction benzaldehyde malononitrile, hydrazine hydrate ethyl acetoacetate (87-98%) at appropriate times (2-10.5 h). could be reused five runs without any re-activation. Significantly, plotted protocol has prominent benefits, such applying solvents, use commercially available low-cost materials, separation reusability short time, yield facile work-up.

Язык: Английский

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Synthesis and characterization of a new Schiff-base complex of copper on magnetic MCM-41 nanoparticles as efficient and reusable nanocatalyst in the synthesis of tetrazoles

Polyhedron, Год журнала: 2023, Номер 244, С. 116587 - 116587

Опубликована: Авг. 12, 2023

Язык: Английский

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Synthesis of tetrazoles catalyzed by a new and recoverable nanocatalyst of cobalt on modified boehmite NPs with 1,3-bis(pyridin-3-ylmethyl)thiourea

RSC Advances, Год журнала: 2023, Номер 13(13), С. 8890 - 8900

Опубликована: Янв. 1, 2023

In the first part of this work, boehmite nanoparticles (BNPs) were synthesized from aqueous solutions NaOH and Al(NO3)3·9H2O. Then, BNPs surface was modified using 3-choloropropyltrimtoxysilane (CPTMS) then 1,3-bis(pyridin-3-ylmethyl)thiourea ((PYT)2) anchored on (CPTMS@BNPs). final step, a complex cobalt stabilized its (Co-(PYT)2@BNPs). The obtained characterized by FT-IR spectra, TGA analysis, SEM imaging, WDX EDS XRD patterns. second part, Co-(PYT)2@BNPs used as highly efficient, retrievable, stable, organic-inorganic hybrid nanocatalyst for formation organic heterocyclic compounds such tetrazole derivatives. novel are stable have heterogeneous nature; therefore, they can be recovered reused again several consecutive runs without any re-activation.

Язык: Английский

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A new neodymium complex on renewable magnetic biochar nanoparticles as an environmentally friendly, recyclable and efficient nanocatalyst in the homoselective synthesis of tetrazoles

Nanoscale Advances, Год журнала: 2024, Номер 6(7), С. 1932 - 1944

Опубликована: Янв. 1, 2024

Inexpensive, stable, selective, and recyclable nanocatalysts, waste regeneration, utilization of safe available solvents are interest important factors in laboratory science industrial applications green chemistry. Therefore, herein, biochar nanoparticles (BNPs) were synthesized through chicken manure pyrolysis as a novel method for recycling. Then, order to improve their recyclability, the obtained BNPs magnetized using magnetic nickel nanoparticles. surface (BMNPs) was modified by (3-chloropropyl)trimethoxysilane (3-CPTMS) further neodymium Schiff-base complex immobilized on BMNPs, denoted Nd-Schiff-base@BMNPs. The supported used practical, biocompatible, commercial, reusable heterogeneous nanocatalyst. support this nanocatalyst formed from manure; therefore, it is cheap, economically viable, also compatible with principles Nd-Schiff-base@BMNPs acts selectively organic reactions can easily be recovered an external magnet reused, which This characterized wavelength-dispersive X-ray spectroscopy (WDX), scanning electron microscopy (SEM), energy-dispersive (EDS), thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR), inductively coupled plasma (ICP), N

Язык: Английский

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Gadolinium Schiff-base complex on nanocomposite of graphene oxide magnetic nanoparticles as a robust, reusable and chemoselective nanocatalyst in the C–C coupling reactions

Polyhedron, Год журнала: 2024, Номер 258, С. 117038 - 117038

Опубликована: Май 14, 2024

Язык: Английский

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A new Schiff‐base complex of palladium nanoparticles on modified boehmite with di(pyridin‐2‐yl)methanone as a robust, reusable, and selective nanocatalyst in the C‐C coupling reaction

Applied Organometallic Chemistry, Год журнала: 2024, Номер 38(3)

Опубликована: Янв. 4, 2024

Boehmite is one of the stable phases alumina that easily available, and it also has a variety applications. Therefore in this work, for preparation AlOOH, Sodium hydroxide (NaOH) solutions was added to aluminum nitrate nonahydrate (Al(NO 3 ) .9H 2 O) solution. Then, surface AlOOH modified with (3‐aminopropyl)triethoxysilane (APTES), due high condensation hydroxyl groups on its surface. di(pyridin‐2‐yl)methanone (di(PM)) immobilized toward synthesis Schiff‐base (di(PM)@AlOOH) as heterogeneous ligand. Finally, palladium complex (Pd‐di(PM)@AlOOH) reusable, practical, novel nanocatalyst. Pd‐di(PM)@AlOOH characterized by thermogravimetric analysis (TGA) analysis, Fourier‐transform infrared spectroscopy (FT‐IR), transmission electron microscopy (TEM), scanning microscope (SEM) imaging, energy‐dispersive X‐ray (EDS) wavelength‐dispersive (WDX) inductively coupled plasma (ICP) analysis. After characterization Pd‐di(PM)@AlOOH, performance used highly stable, retrievable, hybrid organic–inorganic catalyst C‐C coupling Suzuki reaction. The hot filtration study revealed acts heterogeneously We found can be recycled five runs without leaching, studied test ICP

Язык: Английский

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A V(O)-Schiff-base complex on MCM-41 as an efficient, reusable, and chemoselective nanocatalyst for the oxidative coupling of thiols and oxidation of sulfides

Research on Chemical Intermediates, Год журнала: 2023, Номер 49(4), С. 1485 - 1505

Опубликована: Фев. 10, 2023

Язык: Английский

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Two Schiff-base complexes of cadmium and manganese on modified MCM-41 as practical, recyclable and selective nanocatalysts for the synthesis of sulfoxides

Journal of Porous Materials, Год журнала: 2023, Номер 30(4), С. 1395 - 1402

Опубликована: Фев. 13, 2023

Язык: Английский

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A new samarium complex of 1,3-bis(pyridin-3-ylmethyl)thiourea on boehmite nanoparticles as a practical and recyclable nanocatalyst for the selective synthesis of tetrazoles

Scientific Reports, Год журнала: 2023, Номер 13(1)

Опубликована: Апрель 11, 2023

Boehmite is a natural and environmentally friendly compound. Herein boehmite nanoparticles were primarily synthesized and, then, their surface modified via 3-choloropropyltrimtoxysilane (CPTMS). Afterwards, new samarium complex was stabilized on the of (Sm-bis(PYT)@boehmite). The obtained characterized using thermogravimetric analysis (TGA), energy dispersive X-ray spectroscopy (EDS), Brunauer-Emmett-Teller (BET), wavelength (WDX), scanning electron microscope (SEM), Fourier transform infrared (FT-IR), Inductively coupled plasma mass spectrometry (ICP-MS), dynamic light scattering (DLS), diffraction (XRD) pattern. Sm-bis(PYT)@boehmite used as an friendly, efficient, organic-inorganic hybrid nanocatalyst in homoselective synthesis tetrazoles polyethylene glycol 400 (PEG-400) green solvent. Notably, stable has heterogeneous nature. Thus, it can be reused for several runs without any re-activation.

Язык: Английский

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