Homoselective synthesis of tetrazole derivatives using copper complex anchored on mesoporous KIT‐6 as a reusable, highly efficient, and environmentally green nanocatalyst

Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: 38(4)

Published: Feb. 18, 2024

In this article, the mesoporous silica framework of KIT‐6 was synthesized and, then its surface modified using 3‐aminopropyltrimethoxysilane (APTMS). The new KIT‐6@DABP@Cu nanocatalyst prepared by anchoring copper complex on KIT‐6. identified several techniques, including FT‐IR, WDX, AAS, SEM, TGA, XRD, EDS, and BET. physical properties, such as size, shape, morphology were studied SEM analysis. elemental composition described wavelength dispersive X‐ray spectroscopy (WDX) EDS. FT‐IR used to characterize functional groups in structure nanoparticles. stability TGA at high temperatures. Also, area, total volume, average diameter pores determined Brunauer–Emmett–Teller (BET) catalyst found be a new, highly effective, green for synthesizing 5‐substituted‐tetrazoles nitriles sodium azide (NaN 3 ) catalyzed polyethyleneglycol‐400 (PEG‐400) solvent. This heterogeneous showed good recyclability up five consecutive cycles without notable loss catalytic efficiency.

Language: Английский

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A novel recyclable hydrolyzed nanomagnetic copolymer catalyst for green, and one-pot synthesis of tetrahydrobenzo[b]pyrans

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

Published: Dec. 28, 2024

Language: Английский

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New acetohydrazide-based Schiff base complexes with the ability to enhance catalase activity

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 163, P. 112318 - 112318

Published: March 19, 2024

Language: Английский

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A comparative study for the efficiency of Pd (II) and Fe (III) complexes as efficient catalysts for synthesis of dihydro‐7H‐5‐thia‐hexaaza‐s‐indacen‐6‐one derivatives supported with DFT approach

Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: 38(11)

Published: Aug. 4, 2024

Two novel complexes were synthesized by the reaction of benzothiazol‐pyrimidin‐2‐ylidene ligand (BTP) with Pd (II) and Fe (III) ions. A variety various spectral analytical methods (infrared, 1 H/NMR, 13 C/NMR, electronic spectra, CHN analyses, mass thermogravimetric analysis, magnetic susceptibility) used to characterize investigated BTP its complexes. Correlation experimental results density functional theory calculation proves that geometry BTP‐Fe complex is octahedral, whereas BTP‐Pd square planner. The catalytic effectiveness tested for three‐component condensation process under moderate environmentally friendly conditions. Moreover, effects different Lewis acid, basic, ionic liquid catalysts, as well solvent catalyst dose on investigated. Both catalysts demonstrated strong capability in carefully regulated ideal circumstances. Heterogeneous exhibited superior performance compared homogeneous BTP‐Fe. All products obtained high TOF (turnover frequency) numbers presence these which indicate efficiency synthesis dihydro‐7H‐5‐thia‐hexaaza‐s‐indacen‐6‐one derivatives. two catalysts' recycling reusability reactions also could be reused up seven times efficiency, but (BTP‐Fe) only recycled four times. Furthermore, mechanism was suggested supported DFT calculation. simplicity, safety, stability, use commercially available quick times, excellent yields make it promising future industrial use.

Language: Английский

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l-Histidine-functionalized KIT-6 with embedded palladium nanoparticles as an efficient heterogeneous catalyst for oxidation of sulfide to sulfoxide and amination of aryl halides

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 24, 2025

Palladium nanoparticles were supported on L-H-functionalized KIT-6 (KIT-6@L-H-Pd) and evaluated using various characterization techniques such as TGA, FT-IR, SEM, XRD, EDS, BET. KIT-6@L-H-Pd showed excellent catalytic performance a recyclable nanocatalyst for the oxidation of sulfides to sulfoxides amination aryl halides. This approach offers multiple benefits, including use readily available cost-effective materials, straightforward procedure, short reaction durations, high yields, catalyst that is easy separate reuse. Additionally, can be recovered reused times without significant palladium loss or alteration in its activity.

Language: Английский

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3-(Sulfamic acid)-propyltriethoxysilane on biochar nanoparticles as a practical, biocompatible, recyclable and chemoselective nanocatalyst in organic reactions

RSC Advances, Journal Year: 2024, Volume and Issue: 14(31), P. 22147 - 22158

Published: Jan. 1, 2024

Biochar nanoparticles were functionalized by 3-(sulfamic acid)-propyltriethoxysilane (SAPES) as nanocatalyst in the synthesis of sulfoxides and tetrahydrobenzo[ b ]pyrans.

Language: Английский

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In situ decorated pd NPs on Triazin-encapsulated Fe3O4/SiO2-NH2 as magnetic catalyst for the synthesis of diaryl ethers and oxidation of sulfides

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

Published: Oct. 25, 2024

This article is devoted to the synthesis of a new magnetic palladium catalyst that has been immobilized on A-TT-Pd coated-magnetic Fe

Language: Английский

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Tailoring of Novel Ru (III) and Cr (III) Salen Complexes as Catalysts for a Sustainable and Green Synthesis of Dihydro‐tetrazolo [1,5‐a] thiazolo [4,5‐d] pyrimidin‐6‐yl morpholine: Experimental and Theoretical Approaches

Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 15, 2024

ABSTRACT Two novel Cr (III) and Ru salen complexes based on {3,4‐Bis‐[(5‐chloro‐2‐hydroxy‐benzylidene)‐amino]‐phenyl}‐phenyl‐methanone ligand (CSAB) were synthesized. The characterized using various spectral analytical methods. catalytic performance of the CSAB was investigated via a four‐component condensation reaction involving aromatic aldehydes, rhodamine, morpholine, 5‐aminotetrazole under mild, environmentally friendly conditions. Different Lewis acids, bases, ionic liquid catalysts, solvents, catalyst amounts assessed to optimize parameters. Both systems demonstrated robust activity strictly managed conditions, with heterogeneous CSAB‐Ru showing superior efficacy compared homogeneous CSAB‐Cr catalyst. study confirmed capabilities both evaluated their recyclability reusability. (CSAB‐Ru) could be reused seven times, whereas (CSAB‐Cr) recycled four times. strong selectivity, resulting in high product yields. provides insights into synthetic applications complexes, highlighting potential organic transformations. It emphasizes ease use, safety, stability, component availability, quick yields, making them promising for future industrial applications.

Language: Английский

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Role of porosity on silica immobilized palladium complexes as recyclable catalysts in the methoxycarbonylation of 1-hexene

Microporous and Mesoporous Materials, Journal Year: 2024, Volume and Issue: 372, P. 113092 - 113092

Published: March 16, 2024

Immobilization of the palladium complex [Pd(L1)Cl2] (Pd1), where L1 = N,N'E,N,N'E)-N,N'-(3-(3-(triethoxysilyl)propyl)pentane-2,4-diylidene)dianiline, on MCM-41 and SBA-15 supports at 100 °C Pd loading 10% afforded respective materials [Pd1@MCM-41] (Pd2) [Pd1@SBA15] (Pd3) in moderate yields. Calcination temperatures 150 200 using support gave corresponding compounds Pd4 Pd5 respectively, while loadings 5% compound Pd6. The characterization new was achieved by FT-IR for functional group analyses, ICP-OES, TEM SEM-EDX XPS surface morphology, elemental composition, particle size distribution oxidation status PXRD crystallinity N2 physisorption measurements area porosity determinations. All immobilized (Pd2–Pd6) formed active catalysts methoxycarbonylation 1-hexene with catalytic activities (TON 372) to afford mainly linear esters. depended nature their physical properties largely controlled porosity. supported catalysts, which displayed larger pore sizes, were generally more than those MCM-41. recycled five times minimum reduction activities.

Language: Английский

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Anchoring of Ni(II)-Schiff base complex in surface modified SBA-15: A reusable and efficient heterogeneous catalyst for nitroaromatic reduction

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1322, P. 140287 - 140287

Published: Oct. 4, 2024

Language: Английский

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