A highly reactive and magnetic recyclable catalyst based on silver nanoparticles supported on ferrite for <i>N</i>‐monoalkylation of amines with alcohols

Bayat, Ahmad; Shakourian‐Fard, Mehdi; Nouri, Peyman; Hashemi, Mohammed M.

doi:10.1002/aoc.3720

Cited by 12 publications

(6 citation statements)

References 34 publications

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“…Noble metals-based catalysts are well-imminent with their outstanding electrocatalytic activity and sensitivity towards enzymtic-free H 2 O 2 detection [20]. Among these noble metals, silver nanoparticles (Ag NPs) have unique optical, catalytic, and anti-bacterial properties [21,22,23,24]. Furthermore, the great abundance in the nature of Ag makes it more feasible for large-scale applications.…”

Section: Introductionmentioning

confidence: 99%

Novel Enzyme-Free Multifunctional Bentonite/Polypyrrole/Silver Nanocomposite Sensor for Hydrogen Peroxide Detection over a Wide pH Range

Jlassi

Sliem

Eid

et al. 2019

Sensors

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Precise designs of low-cost and efficient catalysts for the detection of hydrogen peroxide (H2O2) over wide ranges of pH are important in various environmental applications. Herein, a versatile and ecofriendly approach is presented for the rational design of ternary bentonite-silylpropyl-polypyrrole/silver nanoarchitectures (denoted as BP-PS-PPy/Ag) via the in-situ photo polymerization of pyrrole with salinized bentonite (BP-PS) in the presence of silver nitrate. The Pyrrolyl-functionalized silane (PS) is used as a coupling agent for tailoring the formation of highly exfoliated BP-PS-PPy sheet-like nanostructures ornamented with monodispersed Ag nanoparticles (NPs). Taking advantage of the combination between the unique physicochemical properties of BP-PS-PPy and the outstanding catalytic merits of Ag nanoparticles (NPs), the as-synthesized BP-PS-PPy/Ag shows a superior electrocatalytic reduction and high-detection activity towards H2O2 under different pH conditions (from 3 to 10). Intriguingly, the UV-light irradiation significantly enhances the electroreduction activity of H2O2 substantially, compared with the dark conditions, due to the high photoelectric response properties of Ag NPs. Moreover, BP-PS-PPy/Ag achived a quick current response with a detection limit at 1 μM within only 1 s. Our present approach is green, facile, scalable and renewable.

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Section: Introductionmentioning

confidence: 99%

Novel Enzyme-Free Multifunctional Bentonite/Polypyrrole/Silver Nanocomposite Sensor for Hydrogen Peroxide Detection over a Wide pH Range

Jlassi

Sliem

Eid

et al. 2019

Sensors

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show abstract

“…When aniline was reacted with Ph−Me and Ph−MeO substituted benzyl alcohols (Table , entry 2 and entry 3) good yields, of ∼97 % and ∼98 %, respectively, are achieved. On other hand, secondary alcohols are challenging alkylating agents compared with primary alcohols because of the dehydrogenation of secondary alcohols to the corresponding ketones is more difficult than that of primary alcohols (Table entry 4) . When benzyl alcohol substituted electron‐withdrawing ‐Cl group reacts with aniline the alkylation results more slowly than with primary alcohols (Table entry 5).…”

Section: Resultsmentioning

confidence: 99%

Self‐Suspended Nanoparticles for N‐Alkylation Reactions: A New Concept for Catalysis

2019

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The catalytic activity of snowman‐like and core‐shell Fe3O4/Au nanoparticles (NPs), obtained through a “wet chemistry” approach which directly restitutes nanocatalysts stable and highly active in the reaction medium, was tested towards N‐alkylation reactions. The nanocatalysts were tested for the synthesis of secondary amines. The core‐shell NPs, thanks to the surface properties, homogeneous dispersion and intimate connection with reagents in the catalyst medium, exhibited an excellent catalytic activity (e. g. >99 % yield and conversion of aniline in very short time and mild conditions). Owing to the magnetic part, the nanoparticles can be easily separated and reused, showing an almost stable activity after 10 cycles.

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“…A full comparison of such catalysts is provided in tabular form in the SI (Table S6). Catalysts of this type are described in refs ,,− .…”

Section: Borrowing Hydrogen Amination Of Benzyl Alcohol By Anilinementioning

confidence: 99%

“…A tabular comparison of the reaction conditions for different reaction types (Figure ) of the target process is provided in SI (Table S10). The literature cited included refs , , , , , , , , , , − , − , , , − , , , − , , , , − , , , , , − , , , , , ,,, , , , − , , , , , , , , , , , , , , − , , − …”

Section: Borrowing Hydrogen Amination Of Alcohols Using Different N-n...mentioning

confidence: 99%

Borrowing Hydrogen Amination Reactions: A Complex Analysis of Trends and Correlations of the Various Reaction Parameters

et al. 2022

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Borrowing hydrogen or the hydrogen autotransfer amination is a powerful approach to create single C–N bonds, starting from stable and readily available substrates: amines and alcohols. It is considered as one of the most atom-efficient and green methods to synthesize complex amines. Herein, we attempted to arrange the array of the existing data in a comprehensive and structured manner and determine correlations between the experimental conditions and catalysis outcome both within different groups of catalysts and between the defined groups using the machine analysis. For each type of N-nucleophiles (aromatic, aliphatic, and heteroaromatic amines, amides), the most efficient working conditions were suggested, including attributing the optimal base and temperature regime for each metal.

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A highly reactive and magnetic recyclable catalyst based on silver nanoparticles supported on ferrite for N‐monoalkylation of amines with alcohols

Cited by 12 publications

References 34 publications

Novel Enzyme-Free Multifunctional Bentonite/Polypyrrole/Silver Nanocomposite Sensor for Hydrogen Peroxide Detection over a Wide pH Range

Novel Enzyme-Free Multifunctional Bentonite/Polypyrrole/Silver Nanocomposite Sensor for Hydrogen Peroxide Detection over a Wide pH Range

Self‐Suspended Nanoparticles for N‐Alkylation Reactions: A New Concept for Catalysis

Borrowing Hydrogen Amination Reactions: A Complex Analysis of Trends and Correlations of the Various Reaction Parameters

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