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Miyaura Coupling (miyaura + coupling)

Distribution by Scientific Domains
Chemistry100%
Distribution within Chemistry
Organic Chemistry90%
General & Introductory Chemistry10%

Terms modified by Miyaura Coupling

  • miyaura coupling reaction
    		•

    Selected Abstracts

    Sulfonated N -Heterocyclic Carbenes for Pd-Catalyzed Sonogashira and Suzuki,Miyaura Coupling in Aqueous Solvents

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 6 2010
    Sutapa Roy
    Abstract The reactions of the N,N, -diarylimidazolium and N,N, -diarylimidazolinium salts with chlorosulfonic acid result in the formation of the respective disulfonated N -heterocyclic carbene (NHC) precursors in reasonable yields (46,77%). Water-soluble palladium catalyst complexes, in situ obtained from the respective sulfonated imidazolinium salt, sodium tetrachloropalladate (Na2PdCl4) and potassium hydroxide (KOH) in water, were successfully applied in the copper-free Sonogashira coupling reaction in isopropyl alcohol/water mixtures using 0.2,mol% catalyst loading. The preformed (disulfonatedNHC)PdCl(cinnamyl) complex was used in aqueous Suzuki,Miyaura reactions at 0.1,mol% catalyst loading. The coupling protocol reported here is very useful for Sonogashira reactions of N - and S -heterocyclic aryl bromides and chlorides with aryl- and alkylacetylenes. [source]

    Iodine-Catalyzed Suzuki,Miyaura Coupling Performed in Air

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 4 2009
    Jincheng Mao
    Abstract Suzuki-type coupling reactions can be performed directly in air using a catalytic system composed of iodine, potassium carbonate, and polyethylene glycol 400 (I2/K2CO3/PEG-400). Iodine was found to be an effective additive for accelerating these couplings. The methodology is also suitable for the coupling of (E)- , -bromostyene with phenylboronic acid, with retention of the double bond geometry. [source]

    Aryl Trifluoroborates in Suzuki,Miyaura Coupling: The Roles of Endogenous Aryl Boronic Acid and Fluoride,

    ANGEWANDTE CHEMIE, Issue 30 2010
    Mike Butters Dr.
    Entscheidender Schritt: Die Biarylkupplung zwischen Aryltrifluorborat und Arylbromid erfordert die In-situ-Hydrolyse des Borreagens. Die Hydrolyseprodukte sind entscheidend dafür, dass die Reaktion mit hoher Effizienz abläuft und möglichst wenig unerwünschte Phenol- und Homokupplungs-Nebenprodukte entstehen. [source]

    ChemInform Abstract: Nickel-Catalyzed Efficient and Practical Suzuki,Miyaura Coupling of Alkenyl and Aryl Carbamates with Aryl Boroxines.

    CHEMINFORM, Issue 27 2010
    Li Xu
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: Facile Palladium Catalyzed Suzuki,Miyaura Coupling in Air and Water at Ambient Temperature.

    CHEMINFORM, Issue 21 2010
    Alexander N. Marziale
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: A Self-Supported Palladium,Bipyridyl Catalyst for the Suzuki,Miyaura Coupling in Water.

    CHEMINFORM, Issue 21 2010
    Takao Osako
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: Efficient Suzuki,Miyaura Coupling of Deactivated Aryl Chlorides Catalyzed by an Oxime Palladacycle.

    CHEMINFORM, Issue 13 2010
    Diego A. Alonso
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: Efficient Synthesis of Dibenzo[a,c]cyclohepten-5-ones via a Sequential Suzuki,Miyaura Coupling and Aldol Condensation Reaction.

    CHEMINFORM, Issue 39 2009
    Young Lok Choi
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: Biphenylene-Substituted Ruthenocenylphosphine for Suzuki,Miyaura Coupling of Aryl Chlorides.

    CHEMINFORM, Issue 41 2008
    Takashi Hoshi
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: Suzuki,Miyaura Coupling in the Presence of (2,2,2-Triferrocenylethyl)diphenylphosphane.

    CHEMINFORM, Issue 24 2008
    Jose Ramon Garabatos-Perera
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: Suzuki,Miyaura Coupling of Benzylic Carbonates with Heteroarylboronic Acids.

    CHEMINFORM, Issue 22 2008
    Ryoichi Kuwano
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    Design and Synthesis of Thioether-Imidazolium Chlorides as Efficient Ligands for Palladium-Catalyzed Suzuki,Miyaura Coupling of Aryl Bromides with Arylboronic Acids.

    CHEMINFORM, Issue 51 2007
    Masami Kuriyama
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    Asymmetric Synthesis of Abietane Diterpenoids via B-Alkyl Suzuki,Miyaura Coupling.

    CHEMINFORM, Issue 24 2007
    Cryptoquinone (Ib)., Formal Total Asymmetric Synthesis of 12-Deoxyroyleanone (Ia)
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    An Improved Protocol for Ligandless Suzuki,Miyaura Coupling in Water.

    CHEMINFORM, Issue 39 2006
    Dmitrii N. Korolev
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    Triazole-Based Monophosphines for Suzuki,Miyaura Coupling and Amination Reactions of Aryl Chlorides.

    CHEMINFORM, Issue 10 2006
    Duan Liu
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    Tandem Stille/Suzuki,Miyaura Coupling of a Hetero-Bis-Metalated Diene.

    CHEMINFORM, Issue 42 2005
    One-Pot Assembly of Polyene Systems., Rapid
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Ferrocenyl Monophosphine Ligands: Synthesis and Applications in the Suzuki,Miyaura Coupling of Aryl Chlorides.

    CHEMINFORM, Issue 12 2005
    Colin Baillie
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    "Click" Polymer-Supported Palladium Nanoparticles as Highly Efficient Catalysts for Olefin Hydrogenation and Suzuki Coupling Reactions under Ambient Conditions

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 13 2009
    Cátia Ornelas
    Abstract Complexation of palladium(II) acetate [Pd(OAc)2] or dipotassium tetrachloropalladate [K2PdCl4] to "click" polymers functionalized with phenyl, ferrocenyl and sodium sulfonate groups gave polymeric palladium(II)-triazolyl complexes that were reduced to "click" polymer-stabilized palladium nanoparticles (PdNPs). Transmission electron microscopy (TEM) showed that reduction using sodium borohydride (NaBH4) produced PdNPs in the 1,3,nm range of diameters depending on the nature of the functional group, whereas slow reduction using methanol yielded PdNPs in the 22,25,nm range. The most active of these PdNPs (0.01% mol Pd), stabilized by poly(ferrocenyltriazolylmethyl)styrene, catalyzed the hydrogenation of styrene at 25,°C and 1 atm hydrogen, with turnover numbers (TONs) of 200,000. When stabilized by the water-soluble poly(sodium sulfonate-triazolylmethyl)styrene, the PdNPs (0.01% mol Pd) catalyze the Suzuki,Miyaura coupling between iodobenzene (PhI) and phenylboronic acid [PhB(OH)2] in water/ethanol (H2O/EtOH) at 25,°C with TONs of 8,200. This high catalytic activity is comparable to that obtained with "click" dendrimer-stabilized PdNPs under ambient conditions. [source]

    ,Click' Dendritic Phosphines: Design, Synthesis, Application in Suzuki Coupling, and Recycling by Nanofiltration

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 3 2009
    Michèle Janssen
    Abstract A new synthetic route towards stable molecular-weight enlarged monodentate phosphine ligands via ,click' chemistry was developed. These ligands were applied in the Pd-catalyzed Suzuki,Miyaura coupling of aryl halides and phenyl boronic acid. The supported systems show very similar activities compared to the unsupported analogues. Moreover, recycling experiments by means of nanofiltration using ceramic nanofiltration membranes demonstrate that these systems can be recovered and reused efficiently. [source]

    Tetrahedral Oligothiophenes; Synthesis, X-ray Analysis, and Optoelectronic Properties of Highly Symmetrical, 3D-Branched Oligothiophenes

    CHEMISTRY - AN ASIAN JOURNAL, Issue 12 2008
    Kouzou Matsumoto Dr.
    Abstract Tetrakis(bithienyl)methane and tetrakis(terthienyl)methane have been synthesized from tetrakis(2-thienyl)methane by use of Suzuki,Miyaura coupling as a key reaction. Their trimethylsilyl (TMS) derivatives are also synthesized. X-ray analysis reveals that each oligothiophene moiety tends to adopt anti -conformations and show relatively small torsion angles between the adjacent thiophene rings. While the longest absorption maxima of these tetrakis(oligothienyl)methanes exhibit only a slight bathochromic shift compared to the corresponding linear oligothiophene derivative, tetrakis(bithienyl)methane and its TMS derivative exhibit an appreciable red-shift in their fluorescence spectra. The intramolecular interaction between thienyl groups of tetrakis(2-thienyl)methane is supported by DFT calculation. [source]