Suzuki–Miyaura cross-coupling reaction catalyzed by Pd/MgLa mixed oxide

Cwik, Agnieszka; Hell, Zoltán; Figuéras, F.

doi:10.1039/b512767j

Cited by 57 publications

(22 citation statements)

References 27 publications

(7 reference statements)

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“…Among various metal/metal oxide composite nanostructures, supported Pd nanocatalysts have been found to play an important role for a number of reactions, including hydrogenation reaction, the carbon-carbon cross-coupling reaction, the oxidation of primary alcohols, the direct generation of H 2 O 2 from H 2 and O 2 , and so on [27][28][29][30]. Recently, Lee et al [31] reported the preparation of Pd/ SnO 2 composite nanorods by using NaBH 4 as reducing agent via a solution process, but the size of the Pd nanoparticles is large, limited their applications in the catalysis.…”

Section: Introductionmentioning

confidence: 99%

Ultrahigh Active Pd Nanocatalyst Supported on Core-Sheath Conducting Polymer/Metal Oxide Composite Nanorods

Xue

Nie

2012

Catal Lett

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A facile and aqueous-phase method based on the electron transfer reduction process for fabricating coresheath structured polyaniline (PANI)/SnO 2 composite nanorods supported Pd nanocatalyst has been demonstrated. The Pd nanoparticles synthesized by this strategy have a small size of smaller than 3.0 nm. The well dispersed Pd nanoparticles with small sizes supported on coresheath PANI/SnO 2 composite nanorods exhibited an ultrahigh catalytic activity during the catalytic reduction of p-nitrophenol into p-aminophenol by NaBH 4 in aqueous solution. The kinetic apparent rate constant (k app ) reach to be about 26.9 9 10 -3 s -1 . It is believed that this method could be extended to cover many kinds of other functional composite nanomaterials where the active component is expected to bring in new features and applications.

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Section: Introductionmentioning

confidence: 99%

Ultrahigh Active Pd Nanocatalyst Supported on Core-Sheath Conducting Polymer/Metal Oxide Composite Nanorods

Xue

Nie

2012

Catal Lett

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“…Scheme 23. Reusable Pd/MgLa mixed-oxide catalyst has also been applied quite successfully in the Suzuki-Miyaura carboncarbon cross-coupling reaction between iodobenzene and nbutylboronic acid in ethanol. [39] The catalyst is air-stable, can be stored and handled under an ambient atmosphere and can be recovered after the reaction and reused without significant loss of activity by simple filtration (Scheme 24). With this system, much better results were obtained with arylboronic acids.…”

Section: Methodsmentioning

confidence: 99%

Suzuki–Miyaura Cross‐Coupling Reactions of Alkylboronic Acid Derivatives or Alkyltrifluoroborates with Aryl, Alkenyl or Alkyl Halides and Triflates

2008

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Palladium‐catalysed Suzuki–Miyaura cross‐couplings of organoboronic acids or organotrifluoroborates with aryl and alkenyl halides or triflates have become classic methods for generating carbon–carbon bonds. For this reaction, not only sp2‐hybridized but also sp3‐hybridized organoboron derivatives can be employed. However, alkylboronic acids or trifluoroborates are generally less reactive than arylboron derivatives. The coupling of primary alkylboronic acids or alkyltrifluoroborates with aryl or alkenyl halides is well known, and the reaction gives the coupling products with high selectivities, relatively high turnover numbers and in good yields with several catalysts. On the other hand, secondary alkylboronic acids or trifluoroborates, except for cyclopropylboron derivatives, are much less reactive, and very few catalyst are able to activate such compounds. Because of the hybridization of cyclopropanes, which confers significant aromatic character, several reactions have successfully been performed with cyclopropylboronic acids or trifluoroborates. The stereochemistries of substituted cyclopropylboron derivatives were maintained in the course of the reactions. For all these couplings with primary or secondary alkylboron derivatives, aryl iodides, bromides, chlorides or triflates and alkenyl iodides, bromides or triflates were employed. Alkenyl chlorides have attracted less attention. The reactions with alkenyl halides are stereoselective. A few examples of couplings between sp3‐hybridized organoboronic acids and alkyl halides have also been reported.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

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“…Megállapítottuk, hogy a magnézium-lantán (3:1) vegyes oxid hordozóra felvitt palládium(0) alkalmas heterogén katalizátor a Heck-, Sonogashira-és Suzuki-kapcsolás megvalósítására (12. ábra). [23][24][25] A reakciókban nem volt szükség ligandum hozzáadására. A Heck-reakcióban az E-konfigurációjú olefin keletkezett kizárólagosan vagy nagy feleslegben, a szubsztrátumtól függõen.…”

Section: Palládiumkatalizált Reakciókunclassified

Suzuki–Miyaura cross-coupling reaction catalyzed by Pd/MgLa mixed oxide

Cited by 57 publications

References 27 publications

Ultrahigh Active Pd Nanocatalyst Supported on Core-Sheath Conducting Polymer/Metal Oxide Composite Nanorods

Ultrahigh Active Pd Nanocatalyst Supported on Core-Sheath Conducting Polymer/Metal Oxide Composite Nanorods

Suzuki–Miyaura Cross‐Coupling Reactions of Alkylboronic Acid Derivatives or Alkyltrifluoroborates with Aryl, Alkenyl or Alkyl Halides and Triflates

Folyadékfázisú, heterogén katalitikus reakciók alkalmazása szerves kémiai szintézisekben

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