Modified zeolite immobilized palladium for ligand-free Suzuki–Miyaura cross-coupling reaction

Kumbhar, Arjun; Kamble, Santosh; Mane, Anand; Jha, Rani; Salunkhe, Rajashri

doi:10.1016/j.jorganchem.2013.03.031

Cited by 32 publications

(11 citation statements)

References 33 publications

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“…The potential of palladium (Pd) is well documented in modern synthetic organic chemistry However, non‐supported Pd‐nanoparticles agglomerate/sinter upon heating . Carbon has been traditionally used to stabilize Pd and the resulting supported metal catalysts are promising candidates for various organic transformations .…”

Section: Introductionmentioning

confidence: 99%

Nano‐sized Recyclable PdO Supported Carbon Nanostructures for Heck Reaction: Influence of Carbon Materials

et al. 2017

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Palladium oxide (PdO) supported carbon nanomaterials were designed and tested for Heck olefination of aryl halides. Various carbonaceous materials, such as single walled carbon nanotubes (SWCNT), multiwalled carbon nanotubes (MWCNT), carbon nanofiber (CNF), graphene oxide (GO) and reduced graphene oxide (RGO) were screened as support for PdO nanoparticles. The structural and phase formation of PdO on carbon materials was confirmed by X-ray diffraction, whereas, surface area and porous nature of the carbon materials was confirmed by N 2 adsorption studies. The morphology of the materials was studied by electron microscopy. Among these catalysts, PdO/GO catalyst showed the best catalytic activity (turnover number 410 and frequency 205 h -1 ) for the Heck olefination and the catalyst was reused successfully up to 3 cycles, which confirms the true heterogeneous nature.

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Section: Introductionmentioning

confidence: 99%

Nano‐sized Recyclable PdO Supported Carbon Nanostructures for Heck Reaction: Influence of Carbon Materials

et al. 2017

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“…Colloidal nanoparticle based catalysts provide a platform to carry out reactions with high efficiency and catalyst reusability. [12] Given their large surface area, they provide an abundance of local reaction centers that could result in high turnover numbers (TON).…”

Section: Introductionmentioning

confidence: 99%

Microwave assisted cross-coupling reactions using palladium nanoparticles in aqueous media

Dhara

Parasar

Patil

2019

Synthetic Communications

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Glucose stabilized palladium nanoparticles (PdNPs) have been prepared and the application of NPs in catalyzing both Suzuki and Heck reactions has been explored in aqueous media under microwave conditions. Both electron-rich and electron-deficient aryl halides can be coupled with a variety of boronic acids and styrene to access a wide variety of biaryl compounds and substituted alkenes in good to excellent yields. The catalyst can be recycled and reused four times with minimally affecting the morphology and efficiency of the nanoparticles. A plausible reaction mechanism has been proposed.

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“…However, unsupported [Pd]-nanoparticles agglomerate or sinter upon heating. [5][6][7][8] Carbon-supported [Pd]-based nanoparticles proved to be highly active catalytic systems and furnished the coupling products in high yields with good selectivity. These advantageous features are attributed to the electronic, mechanical and thermal properties of the carbon support.…”

Section: Introductionmentioning

confidence: 99%

Organic transformations catalyzed by palladium nanoparticles on carbon nanomaterials

et al. 2018

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An efficient CC bond coupling reactions (Suzuki-Miyaura and Glaser) catalyzed by PdO/GO nano-catalyst is presented. In addition, PdO/MWCNT nano-catalyst-mediated domino one-pot synthesis of 2-alkyl/2-aryl benzofurans has been accomplished from 2-iodophenols and terminal alkynes. The formation of benzofurans proceeds through intermolecular Sonogashira reaction followed by intramolecular nucleophilic addition of internal hydroxyl group onto the acetylenic bond. The catalyst PdO/GO has been reused successfully, with nearly no loss of activity up to 5 cycles.

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Modified zeolite immobilized palladium for ligand-free Suzuki–Miyaura cross-coupling reaction

Cited by 32 publications

References 33 publications

Nano‐sized Recyclable PdO Supported Carbon Nanostructures for Heck Reaction: Influence of Carbon Materials

Nano‐sized Recyclable PdO Supported Carbon Nanostructures for Heck Reaction: Influence of Carbon Materials

Microwave assisted cross-coupling reactions using palladium nanoparticles in aqueous media

Organic transformations catalyzed by palladium nanoparticles on carbon nanomaterials

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