Gallic acid-derived palladium(0) nanoparticles as in situ-formed catalyst for Sonogashira cross-coupling reaction in ethanol under open air

Sarmah, Manashi; Mondal, Manoj; Gohain, Shivanee Borpatra; Bora, Utpal

doi:10.1016/j.catcom.2016.10.034

Cited by 18 publications

(6 citation statements)

References 33 publications

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“…Moreover, arylboronic acids act as a stabilizer for NPs and serve as a capping agent to keep them constant in size. This may sometimes lead to limitation of catalytic activity of NPs, 48 which was observed in the case of Pd OS NPs in situ . Because the Ext OS act a great reducing stabilizer in the generation of NPs, the additional stabilizing effect of arylboronic acid capped most of the free surface active site for catalysis resulting in the weaker catalytic activity of Pd OS NP in situ .…”

Section: Results and Discussionmentioning

confidence: 99%

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Effect of Substrates on Catalytic Activity of Biogenic Palladium Nanoparticles in C–C Cross-Coupling Reactions

et al. 2019

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This work describes a practical methodology for C–C bond formation reactions with the aid of biogenic palladium nanoparticles, which are synthesized by using phytochemicals extracted from two common plant species. Comparative studies have been done on the activity of two plant species ( Ocimum sanctum and Aloe vera ) in generation of palladium nanoparticles via ex situ and in situ methods. The structural and morphological characteristics of the nanoparticles are examined by UV/visible spectroscopy, powder X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and transmission electron microscopy analyses. We have observed a significant influence of the substrates on the catalytic activity of the palladium nanoparticles in Sonogashira and Suzuki cross-coupling reactions.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Effect of Substrates on Catalytic Activity of Biogenic Palladium Nanoparticles in C–C Cross-Coupling Reactions

et al. 2019

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“…Pd NPs/TPPTS catalyzed the Suzuki-Miyaura coupling reactions of aryl bromides at room temperature to afford the coupling product within 1 h [362]. In situ-generated Pd NPs by gallic acid was an extremely simple, green, and active catalyst, which catalyzed C-C coupling reactions at room temperature [363,364]. Kumar et al developed a selective synthesis of Pd 9 Te 4 and PdTe, which are applicable for the catalyst in the Suzuki-Miyaura coupling reactions of aryl chloride [365].…”

Section: Othersmentioning

confidence: 99%

Recent Progress of Metal Nanoparticle Catalysts for C–C Bond Forming Reactions

Ohtaka¹

2021

Catalysts

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Over the past few decades, the use of transition metal nanoparticles (NPs) in catalysis has attracted much attention and their use in C–C bond forming reactions constitutes one of their most important applications. A huge variety of metal NPs, which have showed high catalytic activity for C–C bond forming reactions, have been developed up to now. Many kinds of stabilizers, such as inorganic materials, magnetically recoverable materials, porous materials, organic–inorganic composites, carbon materials, polymers, and surfactants have been utilized to develop metal NPs catalysts. This review classified and outlined the categories of metal NPs by the type of support.

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“…Bora. and coworker prepared the gallic acid‐derived Pd(0) nanoparticles catalyst for the Sonogashira reactions in ethanol under optimum thermal conditions M. Rocamora.…”

Section: Introductionmentioning

confidence: 99%

Preparation of novel palladium nanoparticles supported on magnetic iron oxide and their catalytic application in the synthesis of 2‐imino‐3‐phenyl‐2,3‐dihydrobenzo[d]oxazol‐5‐ols

Habibi

Heydari

Afsharfarnia

et al. 2018

Applied Organom Chemis

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Novel Pd nanoparticles were prepared in five successive stages: 1) preparation of the Fe3O4 magnetic nanoparticles (Fe3O4 MNPs), 2) coating of Fe3O4 MNPs with SiO2 (Fe3O4@SiO2), 3) functionalization of Fe3O4@SiO2 with 3‐chloropropyltrimethoxy‐ silane (CPTMS) ligand (Fe3O4@SiO2@CPTMS), 4) further functionalization with 3,5‐diamino‐1,2,4‐triazole (DAT) ligand (Fe3O4@SiO2@CPTMS @DAT), and 5) the complexation of Fe3O4@SiO2@CPTMS@DAT with PdCl2 (Fe3O4@SiO2@CPTMS@ DAT@Pd). Then, the obtained Pd nano‐catalyst characterized by different methods such as the elemental analysis (CHN), FT‐IR, XRD, EDX, SEM, TEM, TG‐DTA and VSM. Finally, the Pd catalyst was applied for the synthesis of various 2‐imino‐3‐phenyl‐2,3‐dihydrobenzo[d]oxazol‐5‐ols.

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Gallic acid-derived palladium(0) nanoparticles as in situ-formed catalyst for Sonogashira cross-coupling reaction in ethanol under open air

Cited by 18 publications

References 33 publications

Effect of Substrates on Catalytic Activity of Biogenic Palladium Nanoparticles in C–C Cross-Coupling Reactions

Effect of Substrates on Catalytic Activity of Biogenic Palladium Nanoparticles in C–C Cross-Coupling Reactions

Recent Progress of Metal Nanoparticle Catalysts for C–C Bond Forming Reactions

Preparation of novel palladium nanoparticles supported on magnetic iron oxide and their catalytic application in the synthesis of 2‐imino‐3‐phenyl‐2,3‐dihydrobenzo[d]oxazol‐5‐ols

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