In situ prepared copper nanoparticles on modified KIT-5 as an efficient recyclable catalyst and its applications in click reactions in water

Mirsafaei, Razieh; Heravi, Majid Μ.; Ahmadi, Shervin; Moslemin, Mohammad Hossein; Hosseinnejad, Tayebeh

doi:10.1016/j.molcata.2015.03.006

Cited by 86 publications

(36 citation statements)

References 44 publications

(61 reference statements)

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“…We recently published a review article regarding Pd(0) nanoparticles in which we disclosed the utility of mesoporous silica for the encapsulation of Pd nanoparticles. 13 In attempt to expand the concept of encapsulated catalysts 9,11,90,91 and in continuation of our recent review article on encapsulated catalysts, 13 herein we consider mesoporous silica materials from a new point of view and cover the recent advances (2014)(2015)(2016)(2017) in utility of the functionalized SBA mesoporous silica for embedding various catalytic species or second functionality for developing novel hybrid catalysts. Noteworthy, we make effort to highlight the advantageous of these state of the art catalysts.…”

Section: -86mentioning

confidence: 99%

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Current advances in the utility of functionalized SBA mesoporous silica for developing encapsulated nanocatalysts: state of the art

Sadjadi

Heravi

2017

RSC Adv.

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The cavities of SBA mesoporous silica materials can be used as nanoreactors for embedding catalytic species such as nanoparticles, complexes and heteropolyacids etc. The encapsulated catalysts are renowned as superior catalytic systems regarding their catalytic activity, selectivity and reusability as well as suppressed leaching. An efficient method to improve the encapsulation of these catalysts, is in creating anchors for capturing catalytic species. It has been performed by functionalization of the surface of SBA mesoporous silica materials with various groups including sulfur, phosphorus and aminebased functional groups. The aim of this article is to review the recent advances (2014)(2015)(2016)(2017) in the field of the utility of functionalized SBA for developing encapsulated catalysts. In most cases the reusability of the catalyst and the leaching of the catalytic active species were discussed to disclose the role of functionalized SBA in heterogenizing and suppressing the leaching. Moreover, to show the superiority of these developed encapsulated catalysts, with a couple of examples we compared their catalytic activities with those of the conventional ones.

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Section: -86mentioning

confidence: 99%

“…Various reagents with different electron densities and steric hindrance could be used and lead to the corresponding products in relatively short reaction times (6-8 h) in excellent yields (90)(91)(92)(93)(94)(95)(96)(97)(98). The recycling test established that the catalyst could be recovered and reused for ve reaction runs.…”

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confidence: 99%

Current advances in the utility of functionalized SBA mesoporous silica for developing encapsulated nanocatalysts: state of the art

Sadjadi

Heravi

2017

RSC Adv.

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“…The yields and the melting point of all products have been determined followed by the comparison of their physical and spectral data with previously reported samples. KIT-5 as a mesoporous silica source was prepared in previous work (Mirsafaei et al 2015). Table 1 shows some physical properties of KIT-5.…”

Section: Chemicalsmentioning

confidence: 99%

“…Synthesis of novel catalysis based on KIT-5 is in the center of our interest (Mirsafaei et al 2015(Mirsafaei et al , 2016. In continuation of our research group, here, we report a new heterogeneous nanocatalyst protocol with high-active acid groups for the preparation of important biomolecules (1,4-DHP) under solvent-free conditions.…”

Section: Introductionmentioning

confidence: 96%

Synthesis and characterization of reusable nano-order SO3H-KIT-5 as a heterogeneous catalyst for eco-friendly synthesis of 1,4-dihydropyridines

Mirsafaei

Delzendeh

Abdolazimi

2016

Int. J. Environ. Sci. Technol.

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A novel nanocatalyst silica-bonded sulfuric acid supported on KIT-5 as an organic-inorganic hybrid with high activity was prepared successfully. The KIT-5 with high surface area was reacted with chlorosulfonic acid via simple and rapid method. This efficient and reusable heterogeneous catalyst sulfuric acid nanocatalyst catalyzed one-pot synthesis of b-dicarbonyl compounds, aldehyde and ammonium acetate in the presence of 0.05 g of nanocatalyst at room temperature via solvent-free conditions to afford excellent yields of 1,4-dihydropyridines. This nanocatalyst was fully characterized by XRD, SEM-EDXS and Map analyses. The morphology of the catalyst surface by SEM images shows all porous of KIT-5 after the reaction was filled with the SO 3 H groups. The average size determines around 22-24 nm. This catalyst can be reused five times without any significant loss of activity, too. The ease of separation, high activity, high surface area and reaction under open air condition are the main advantages of this catalyst.

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“…Applications of various forms of polymer‐supported CuI as reusable and recoverable heterogeneous catalysts for the reigoselective synthesis of 1,4‐disubstituted 1,2,3‐triazoles from the reaction between alkynes and azides have been reported in the last decade . Interest in metal nanoparticle‐based catalysis is strongly increasing as a stable and competitive alternative to conventional catalysis …”

Section: Introductionmentioning

confidence: 99%

In situpreparation and characterization of novel CuI‐functionalized poly[(methyl methacrylate)‐co‐maleimide] as an efficient heterogeneous catalyst in the regioselective synthesis of 1,2,3‐triazoles via click reaction: Experimental and computational chemistry

Pourmohammad

Heravi

Ahmadi

et al. 2019

Applied Organom Chemis

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A CuI‐functionalized poly[(methyl methacrylate)‐co‐maleimide] (CuI@[PMMA‐co‐MI]) nanocatalyst was prepared from in situ polymerization and functionalization of poly[(methyl methacrylate)‐co‐(maleic anhydride)] and well characterized using various techniques. From a computational viewpoint, we assessed two complexation models between copper nanoparticles and [PMMA‐co‐MI]. In this line, the metal–ligand interaction strength was also studied via density functional theory calculations and frontier molecular orbital analysis. Moreover, for presenting a quantitative description of the electronic features of immobilization of copper nanoparticles on polymeric support, the topological analysis of electron density and its Laplacian was performed through quantum theory of atoms in molecules. Finally, the catalytic activity of CuI@[PMMA‐co‐MI] as a heterogeneous nanocatalyst was successfully examined in the highly regioselective synthesis of 1,4‐disubstituted 1,2,3‐triazoles via click reaction.

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In situ prepared copper nanoparticles on modified KIT-5 as an efficient recyclable catalyst and its applications in click reactions in water

Cited by 86 publications

References 44 publications

Current advances in the utility of functionalized SBA mesoporous silica for developing encapsulated nanocatalysts: state of the art

Current advances in the utility of functionalized SBA mesoporous silica for developing encapsulated nanocatalysts: state of the art

Synthesis and characterization of reusable nano-order SO3H-KIT-5 as a heterogeneous catalyst for eco-friendly synthesis of 1,4-dihydropyridines

In situpreparation and characterization of novel CuI‐functionalized poly[(methyl methacrylate)‐co‐maleimide] as an efficient heterogeneous catalyst in the regioselective synthesis of 1,2,3‐triazoles via click reaction: Experimental and computational chemistry

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