Palladium Nanoparticles Immobilized on Schiff Base‐Functionalized Graphene‐Oxide: Application in Carbon‐Carbon Cross‐Coupling Reactions

Parmanand,; Kumari, Shweta; Mittal, Ayushi; Kumar, Anoop; Krishna, .

doi:10.1002/slct.201902242

Cited by 9 publications

(2 citation statements)

References 116 publications

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“…The development and expansion of efficient and useful carbon-carbon bond formation methods is a performance character in the synthesis of organic compounds. [11][12][13][14][15][16][17][18][19] Some of the most frequently used reactions of carbon-carbon bond formation in organic synthesis are Mizoroki-Heck, Sonogashira, Suzuki-Miyaura, Stille, Negishi, etc. [20][21][22][23][24][25][26][27][28][29][30] Among them, the Suzuki reaction is known as the main and general process in the synthesis of biaryls, and palladium compounds usually catalyze this reaction, which includes phenylboronic acid or its derivatives coupling with various aryl halides.…”

Section: Introductionmentioning

confidence: 99%

Efficient and biocompatible new palladium-supported boehmite nanoparticles: synthesis, characterization and application in Suzuki–Miura and Mizoroki–Heck coupling reactions

Hajighasemi,

Nahipour,

Ghorbani-Choghamarani

et al. 2023

Nanoscale Adv.

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Section: Introductionmentioning

confidence: 99%

Efficient and biocompatible new palladium-supported boehmite nanoparticles: synthesis, characterization and application in Suzuki–Miura and Mizoroki–Heck coupling reactions

Hajighasemi,

Nahipour,

Ghorbani-Choghamarani

et al. 2023

Nanoscale Adv.

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“…Due to their specific characteristics, supported transition metals are considered excellent candidates for application in catalytic processes that require an oxidation/reduction step. Palladium is a transition metal commonly used for, alkene isomerization (Chuc et al, 2017) and hydrogenation (Kuai et al, 2020), oxidations (Guo et al, 2019), and carbon-carbon cross-coupling reactions (Parmanand et al, 2019). In this work, we present a method of direct biosynthesis of magnetic supported Pd nanoparticles, using bark/stem extract of Rhamnidium elaeocarpum Reissek (Rhamnaceae) species.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of Fe3O4@ZnO-supported Pd nanoparticles for oxidation and hydrogenation reactions in liquid systems

Souto

Razini²,

Kauffmann³

et al. 2022

RSD

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In this work Pd nanoparticles immobilized on a hybrid solid support comprised of Fe3O4 coated by a ZnO layer were synthesized by a green method which makes use of water, a biological substrate from a local plant (Rhamnidium elaeocarpum) and inexpensive Fe3+ and Zn2+ salts. 1H-NMR and 13C-NM revealed β-sitosterol as the main component of the biological substrate. The catalytic support containing Pd nanoparticles was applied in three model solid-liquid catalytic systems, namely: alcohol oxidation, nitrocompound reduction and olefin hydrogenation. For the alcohol oxidation, benzyl alcohol was used as the substrate in a solvent-free condition with high selectivity towards benzaldehyde, and a single sample of the catalyst could be recycled up to 11 times before any loss of activity could be detected. TOF (turnover frequency) as high as 13,686 h-1 for the substrate oxidation was achieved with an average yield rate of 45.4% for formation of benzaldehyde and 81.6% of average substrate conversion after 6 catalytic cycles. For the hydrogenation experiments using cyclohexene and 4-nitrophenol as model substrates, conversion as high as 96% to 4-aminophenol and cyclohexane, respectively, was achieved after 30 minutes of reaction. Furthermore, a single sample of the catalyst could be recycled for up to 17 times for the reduction of 4-nitrophenol, and 21 times in the hydrogenation of cyclohexene. Catalytic recycling for all studied reactions was straightforward after due to the superparamagnetic property of the material, and catalyst isolation after each batch could be rapidly carried out using a Nd magnet. These results suggests that a highly active and stable catalytic system based on Pd nanoparticles supported on a multifunctional solid could be fabricated using green and inexpensive biomass under operationally simple synthesis conditions.

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A new copper complex on graphene oxide: A heterogeneous catalyst for N‐arylation and C‐H activation

Mittal

Kumari

Parmanand

et al. 2019

Applied Organom Chemis

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Graphene oxide supported Cu (II) ligand complex (GO@AP/L‐Cu) has been synthesized and characterized by FT‐IR, Raman, PXRD, UV–Visible, TGA, XPS, FESEM, TEM, EDAX, Elemental mapping, BET, CHNS and AAS analysis. The complex has been found to be efficient and reusable heterogeneous catalyst for the N‐arylation and C‐H activation reactions, both the catalytic reactions were found to be simple, cleaner and give high yields (~ 90%) of product. The catalyst can be easily filtered out from the reaction mixture and reused up to four times without significant loss of catalytic activity. The reported method is economical and novel in the sense that aqueous medium was used for both the reactions and for the stability of the catalyst. All isolated organic products were fully characterized on the basis of their physical and spectral data.

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Palladium Nanoparticles Immobilized on Schiff Base‐Functionalized Graphene‐Oxide: Application in Carbon‐Carbon Cross‐Coupling Reactions

Cited by 9 publications

References 116 publications

Efficient and biocompatible new palladium-supported boehmite nanoparticles: synthesis, characterization and application in Suzuki–Miura and Mizoroki–Heck coupling reactions

Efficient and biocompatible new palladium-supported boehmite nanoparticles: synthesis, characterization and application in Suzuki–Miura and Mizoroki–Heck coupling reactions

Green synthesis of Fe3O4@ZnO-supported Pd nanoparticles for oxidation and hydrogenation reactions in liquid systems

A new copper complex on graphene oxide: A heterogeneous catalyst for N‐arylation and C‐H activation

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