From Noble Metal to Nobel Prize: Palladium‐Catalyzed Coupling Reactions as Key Methods in Organic Synthesis

Wu, Xiao‐Feng; Anbarasan, Pazhamalai; Neumann, Helfried; Beller, Matthias

doi:10.1002/anie.201006374

Cited by 538 publications

(231 citation statements)

References 32 publications

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“…As a kind of those noble metals, palladium (Pd) has been used as a catalytically active phase in various organic synthesis, including cross-coupling reactions [20,21] and hydrogenation reactions [22], and has shown excellent catalytic activity and selectivity. Palladium had also been proved to be active for 1-butene isomerization reaction at lower temperature.…”

Section: Introductionmentioning

confidence: 99%

Room-temperature isomerization of 1-butene to 2-butene over palladium-loaded silica nanospheres catalyst

Yang

et al. 2016

Chemical Engineering Journal

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Section: Introductionmentioning

confidence: 99%

Room-temperature isomerization of 1-butene to 2-butene over palladium-loaded silica nanospheres catalyst

Yang

et al. 2016

Chemical Engineering Journal

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“…The resulting PMMA/TIP solution was then electrospun, at 18 kV and 18 cm using electrospinning equipment model Holmarc's HO-NFES-040. The spun fibers were then allowed to stand for 4 h at room temperature to dry off the solvents and to allow the hydrolysis of titanium (IV) hydroxide, Ti(OH) 4 , to go to completion. The dried material was then peeled off the aluminum foil and transferred to a ceramic boat for annealing in a Lindberg/Blue M, model number TF55035C-1 furnace.…”

Section: Structural Characterizations Of Catalystmentioning

confidence: 99%

“…HR can be used to produce fine chemicals such as detergents, plastics, pharmaceuticals, and polymers [1][2][3][4]. The herbicide Prosulfuron6, the sunscreen agent 2-ethylhexyl p-methoxycinnamate, and Naproxen6, antiasthma agent Singulair6, are examples of compounds that have been produced on large scale [1].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Pd Modified TiO₂ Nanofiber Catalyst for Carbon–Carbon Coupling Heck Reaction

Nyangasi

Andala

Onindo

et al. 2017

Journal of Nanomaterials

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TiO 2 fibers were prepared through electrospinning of poly methyl methacrylate (PMMA) and titanium isopropoxide (TIP) solution followed by calcination of fibers in air at 500 ∘ C. Cetyltrimethylammonium bromide (CTAB) protected palladium nanoparticles (Pd NPs) prepared through reduction method were successfully adsorbed on the TiO 2 nanofibers (NF). Combined studies of X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscope (TEM) indicated that the synthesized Pd/TiO 2 had anatase. BET indicated that the synthesized TiO 2 and Pd/TiO 2 had a surface area of 53.4 and 43.4 m 2 /g, respectively. The activity and selectivity of 1 mol% Pd/TiO 2 in the Heck reaction have been investigated towards the Mizoroki-Heck carbon-carbon cross-coupling of bromobenzene (ArBr) and styrene. Temperature, time, solvent, and base were optimized and catalyst was recycled thrice.1 H NMR and 13 C NMR indicated that stilbene, a known compound from literature, was obtained in various Heck reactions at temperatures between 100 ∘ C and 140 ∘ C but the recyclability was limited due to some palladium leaching and catalyst poisoning which probably arose from some residual carbon from the polymer. The catalyst was found to be highly active under air atmosphere with reaction temperatures up to 140 ∘ C. Optimized reaction condition resulted in 89.7% conversions with a TON of 1993.4 and TOF value of 332.2 hr −1 .

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“…1 Palladium-based catalysts have been used for cross-coupling reactions and powerful methods for the creation of new carbon-carbon bonds. 2,3 Graphene is rising as a new type of carbon material that was first prepared by mechanical exfoliation from graphite in 2004, and as a new type of support substrates for functional nanosized materials. [4][5][6] Graphene is a two-dimensional free-standing substance with a single-layer structure that has become one of the most popular topics in the fields of chemistry, biochemistry, nanotechnology, physics, and materials science.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Nanosized Palladium-Graphene Composites and Photocatalytic Degradation of Various Organic Dyes

Kim¹,

Ko²

2016

Elastomers and Composites

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Nanosized palladium particles were synthesized using palladium(II) chloride, trisodium citrate dihydrate, and sodium borohydride under stirring condition. Nanosized palladium-graphene composites were prepared from palladium nanoparticles, and graphene was enclosed with polyallylamine under stirring condition for 1 h followed by ultrasonication for 3 h. Nanosized palladium-graphene composites were heated in an electric furnace at 700 °C for 2 h and characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. UV-vis spectrophotometry was used to evaluate the nanosized palladium-graphene composites as a catalyst in the photocatalytic degradation of various organic dyes such as methylene blue, methyl orange, rhodamine B, and brilliant green under ultraviolet light at 254 nm.

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From Noble Metal to Nobel Prize: Palladium‐Catalyzed Coupling Reactions as Key Methods in Organic Synthesis

Cited by 538 publications

References 32 publications

Room-temperature isomerization of 1-butene to 2-butene over palladium-loaded silica nanospheres catalyst

Room-temperature isomerization of 1-butene to 2-butene over palladium-loaded silica nanospheres catalyst

Preparation and Characterization of Pd Modified TiO₂ Nanofiber Catalyst for Carbon–Carbon Coupling Heck Reaction

Preparation of Nanosized Palladium-Graphene Composites and Photocatalytic Degradation of Various Organic Dyes

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From Noble Metal to Nobel Prize: Palladium‐Catalyzed Coupling Reactions as Key Methods in Organic Synthesis

Cited by 538 publications

References 32 publications

Room-temperature isomerization of 1-butene to 2-butene over palladium-loaded silica nanospheres catalyst

Room-temperature isomerization of 1-butene to 2-butene over palladium-loaded silica nanospheres catalyst

Preparation and Characterization of Pd Modified TiO2 Nanofiber Catalyst for Carbon–Carbon Coupling Heck Reaction

Preparation of Nanosized Palladium-Graphene Composites and Photocatalytic Degradation of Various Organic Dyes

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Preparation and Characterization of Pd Modified TiO₂ Nanofiber Catalyst for Carbon–Carbon Coupling Heck Reaction