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Palladium Complexes (palladium + complex)

Distribution by Scientific Domains
Chemistry91%
Polymers and Materials Science8%
Distribution within Chemistry
Organic Chemistry57%
General & Introductory Chemistry14%

Kinds of Palladium Complexes

  • chiral palladium complex
    		•

    Selected Abstracts

    Allylic Amination of Internal Alkynes with Aromatic and Aliphatic Amines Using Polymer-Supported Triphenylphosphane,Palladium Complex as a Heterogeneous and Recyclable Catalyst

    EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 26 2010
    Yogesh S. Wagh
    Abstract A facile and novel protocol for the allylic amination of internal alkynes with amines by using a polymer-supported triphenylphosphane,palladium complex [PS,TPP,Pd] as a highly active heterogeneous reusable catalyst was developed. The catalyst exhibited remarkable activity and is reusable over five consecutive cycles. The protocol was applicable for a variety of hindered and functionalized aromatic/aliphatic amines and afforded the desired allylic products in good to excellent yield. [source]

    ChemInform Abstract: Hydrocarboxylation of Allenes with CO2 Catalyzed by Silyl Pincer-Type Palladium Complex.

    CHEMINFORM, Issue 12 2009
    Jun Takaya
    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: Copper-Free Sonogashira Cross-Coupling Reaction Catalyzed by Polymer-Supported N-Heterocyclic Carbene Palladium Complex.

    CHEMINFORM, Issue 2 2008
    Jong-Ho Kim
    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]

    Dicyano-Functionalized MCM-41-Supported Palladium Complex as an Efficient Catalyst for Allylation of Aldehydes and Ketones.

    CHEMINFORM, Issue 10 2007
    Hong Zhao
    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]

    Amphiphilic Polymer-Supported N-Heterocyclic Carbene Palladium Complex for Suzuki Cross-Coupling Reaction in Water.

    CHEMINFORM, Issue 41 2006
    Jung-Woo Kim
    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]

    Catalytic Investigations of Carbon,Carbon Bond-Forming Reactions by a Hydroxyapatite-Bound Palladium Complex.

    CHEMINFORM, Issue 2 2006
    Kohsuke Mori
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Polymer-Supported N-Heterocyclic Carbene,Palladium Complex for Heterogeneous Suzuki Cross-Coupling Reaction.

    CHEMINFORM, Issue 52 2005
    Jong-Ho Kim
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Free Radical-Mediated Tandem Reaction of Dehydroamino Acid Derivative with ,-Allyl Palladium Complex: Synthesis of ,,,-Disubstituted Amino Acids.

    CHEMINFORM, Issue 25 2004
    Hideto Miyabe
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    P-Chirogenic Benzo-Fused Phenoxaphosphane: Synthesis, Resolution and Study of the Stereochemical Properties of the Corresponding Palladium Complexes

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 8 2008
    Franco Doro
    Abstract The synthesis and resolution of chiral phenoxaphosphane 3, with the stereogenic center at the phosphorus atom, is described. Compound 3 has been synthesized following a well-known procedure for trapping a phosphorus atom within a six-membered ring. The resolution of the racemic mixture of 3 was achieved through separation of its diastereomeric palladacycle derivatives 7a,b and 9a,b. The absolute configuration of enantiopure phosphanes 3a,b was assigned unequivocally by means of X-ray crystal structure determination for complex 9a and by combination of NOE(1H,1H)/COSY(1H,1H) spectroscopy and DFT calculations for complexes 7a,b, which in both cases led to identical results. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008) [source]

    Diastereopure Cationic NCN-Pincer Palladium Complexes with Square Planar ,4 - N,C,N,O Coordination

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 22 2006
    Silvia Gosiewska
    Abstract Neutral NCN-pincer palladium bromide complex 2 containing the monoanionic, enantiopure pincer ligand 2,6-bis{[(S)-2-hydroxymethyl-1-pyrrolidinyl]methyl}phenyl bromide (1) with bis- ortho -(S)-prolinol substituents was synthesized and isolated as a mixture of three stereoisomers [(SN,SN,SC,SC), (RN,SN,SC,SC), and (RN,RN,SC,SC)] in a 1:1:1 ratio. Upon abstraction of the bromide ion from the unresolved mixture of 2, single diastereoisomers of the cationic complexes [3]BF4 and [3]PF6, respectively, were formed with a unique,4 - N,C,N,O coordination mode of ligand 1. X-ray crystal structure determination established the intramolecular,4 - N,C,N,O coordination of 1 to palladium where the typical mer -,3 - N,C,N pincer coordination is accompanied by coordination of one of the hydroxy groups of the (S)-prolinol moieties. The water molecule that was cocrystallized in the crystal structure of [3]PF6 does not coordinate to palladium, but instead is involved in a hydrogen bonding network. The catalytic potential of both cationic complexes, [3]BF4 and [3]PF6, was tested in an aldol reaction of aldehydes with methyl isocyanoacetate to yield the oxazoline products as racemic mixtures.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006) [source]

    Bis(fluoromesityl) Palladium Complexes, Archetypes of Steric Crowding and Axial Protection by ortho Effect , Evidence for Dissociative Substitution Processes , Observation of 19F,19F Through-Space Couplings

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 11 2004
    Camino Bartolomé
    Abstract Bisarylated complexes trans -[Pd(Fmes)2(SR2)2] [Fmes = 2,4,6-tris(trifluoromethyl)phenyl (fluoromesityl); SR2 = SMe2, tht; tht = tetrahydrothiophene] are precursors for various bisarylated fluoromesityl palladium(II) complexes by ligand-substitution reactions. Boiling under reflux in acetonitrile gives the mixed complexes trans -[Pd(Fmes)2(NCMe)(SR2)], whereas boiling under reflux in toluene leads to trans -[PdCl2L2] (L = PMe3, tBuNC, pTol-NC, 4-MePy), in the presence of neutral monodentate ligands, or to (NnBu4)[trans -Pd(Fmes)2I(SR2)] when treated with (NnBu4)I. trans -[Pd(Fmes)2(SMe2)2] reacts with bidentate ligands, also boiling under reflux in toluene, to give [Pd(Fmes)2(L,L)] [L,L = Me2bipy, 2,2, - biquinolyl, ,2N,N, -OCPy2, dppm (Ph2PCH2PPh2), dppe (Ph2PCH2CH2PPh2), pte (PhSCH2CH2SPh), ,2S,N -SPPh2Py, ,2O,N -OPPhPy2], or the bimetallic complex [Pd(Fmes)2(,-1,N:1,2,O:2,N -Py2MeCO)Pd(Fmes)(SMe2)] (characterized by X-ray diffractometry) when treated with (OH)(CH3)CPy2. The crowding associated with two Fmes groups produces several interesting features: (1) trans complexes are preferred over cis complexes, against the expected electronic preferences; (2) the low-temperature NMR spectra of several complexes, or the X-ray diffraction structure of [Pd(Fmes)2(2,2, - biquinolyl)], reveal significant structural distortions associated with steric crowding; (3) the need for boiling under reflux in the synthesis suggests a dissociative substitution mechanism, which is unknown so far for Pd; (4) some of the complexes show 19F,19F through-space couplings. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004) [source]

    ChemInform Abstract: Clean Synthesis of Triarylamines: Buchwald,Hartwig Reaction in Water with Amphiphilic Resin-Supported Palladium Complexes.

    CHEMINFORM, Issue 24 2010
    Yoshinori Hirai
    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: Matching the Chirality of Monodentate N-Heterocyclic Carbene Ligands: A Case Study on Well-Defined Palladium Complexes for the Asymmetric ,-Arylation of Amides.

    CHEMINFORM, Issue 19 2009
    Xinjun Luan
    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: N-Heterocyclic Carbene,Acetylamide Palladium Complexes and Their Catalytic Activities in Heck,Mizoroki Reactions.

    CHEMINFORM, Issue 3 2009
    Tao Zhang
    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: Catalytic Enantioselective Fluorination Reactions of ,-Cyano Acetates and ,-Cyanophosphonates Using Chiral Palladium Complexes.

    CHEMINFORM, Issue 16 2008
    Sun Mi Kim
    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]

    Hydroalkenylation of Alkynes Catalyzed by Dinuclear Palladium Complexes via C,H Bond Activation.

    CHEMINFORM, Issue 10 2007
    Naofumi Tsukada
    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]

    ,-Allylic C1-Substitution in Water with Nitromethane Using Amphiphilic Resin-Supported Palladium Complexes.

    CHEMINFORM, Issue 8 2007
    Yasuhiro Uozumi
    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]

    Aerobic Intramolecular Oxidative Amination of Alkenes Catalyzed by NHC-Coordinated Palladium Complexes.

    CHEMINFORM, Issue 40 2006
    Michelle M. Rogers
    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]

    N-Heterocyclic NCN-Pincer Palladium Complexes: A Source for General Highly Efficient Catalysts in Heck, Suzuki, and Sonogashira Coupling Reactions.

    CHEMINFORM, Issue 17 2006
    Fatima Churruca
    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]

    Catalytic Enantioselective Fluorination of ,-Cyano Acetates Catalyzed by Chiral Palladium Complexes.

    CHEMINFORM, Issue 32 2005
    Hye Ran Kim
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Methoxycarbonylation of Vinyl Acetate Catalyzed by Palladium Complexes of Bis(ditertiarybutylphosphinomethyl)benzene and Related Ligands.

    CHEMINFORM, Issue 29 2005
    Adam J. Rucklidge
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Catalytic Asymmetric Addition of ,-Ketoesters to Various Imines by Using Chiral Palladium Complexes.

    CHEMINFORM, Issue 28 2005
    Yoshitaka Hamashima
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    An Efficient Catalytic Enantioselective Fluorination of ,-Ketophosphonates Using Chiral Palladium Complexes.

    CHEMINFORM, Issue 26 2005
    Yoshitaka Hamashima
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    A Stereoselective Carbocyclization of Bis(allenes) with Germylstannane Catalyzed by Palladium Complexes.

    CHEMINFORM, Issue 11 2005
    Young-Taek Hong
    No abstract is available for this article. [source]

    Exo- and Endocyclic Oxazolinyl,Phosphane Palladium Complexes: Catalytic Behavior in Allylic Alkylation Processes.

    CHEMINFORM, Issue 42 2004
    Delphine Franco
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Supramolecular Catalysts by Encapsulating Palladium Complexes within Dendrimers.

    CHEMINFORM, Issue 26 2004
    Masahiko Ooe
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Double Carbonylation of Aryl Iodides with Diethylamine Catalyzed by Dinuclear Palladium Complexes.

    CHEMINFORM, Issue 15 2004
    Naofumi Tsukada
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Highly Regio- and Stereoselective Silylstannation of Allenes Catalyzed by Phosphine-Free Palladium Complexes.

    CHEMINFORM, Issue 11 2003
    Masilamani Jeganmohan
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Heteropolynuclear Palladium Complexes with Pyrazolate and Its 3- tert -Butyl Derivatives: The Effect of Heterometal Ions on the Rate of Isomerization

    CHEMISTRY - A EUROPEAN JOURNAL, Issue 19 2006
    Keisuke Umakoshi Prof. Dr.
    Abstract The heteropolynuclear complexes [Pd2M,2(,-pz)6] (M,=Ag (1), Au (2); pzH=pyrazole), HT -[Pd2M,2(,-3- tBupz)6] (M,=Ag (3,a), Au (4,a); 3- tBupzH=3- tert -butylpyrazole), and HH -[Pd2Au2(,-3- tBupz)6] (4,b) have been prepared and some of them were structurally characterized. When 3- tert -butylpyrazolate was employed as a bridging ligand, two linkage isomers (head-to-tail (HT) and head-to-head (HH)) arise from the difference in orientation of the substituent groups on the pyrazolate bridges between the two Pd atoms. 1H NMR spectroscopy has been used to identify and to follow the reversible stereochemical rearrangement of the HH isomer of [Pd2Ag2(,-3- tBupz)6] (3,b) to form the HT isomer 3,a in CDCl3 and the HT isomer of [Pd2Au2(,-3- tBupz)6] (4,a) to form the HH isomer 4,b in C6D6. Kinetic studies of the reaction have established the rate law to be ,d(HH)/dt=d(HT)/dt=k2[HH],k1[HT] for 3,b and ,d(HT)/dt=d(HH)/dt=k1[HT],k2[HH] for 4,a, where k1 and k2 denote the rate of isomerization from the HT to the HH isomer and that from the HH to the HT isomer, respectively. For typical runs at 50,°C in C6D6, k1=13.8×10,5 s,1, k2=18.6×10,5 s,1, and Keq=k2/k1=1.24 for 3,b, and k1=1.26×10,5 s,1, k2=3.52×10,5 s,1, and Keq=k1/k2=0.36 for 4,a. Temperature-dependent rate measurements reveal ,H, and ,S, to be 100(1) kJ,mol,1 and 0(3) J,mol,1,K,1 for 3,b and 112(5) kJ,mol,1 and 20(17) J,mol,1,K,1 for 4,a, respectively. The rate of isomerization is essentially unaffected by the concentration of the complex or by the presence of neutral bridging ligands. These data and observations imply that the isomerization involves an intramolecular exchange process. [source]

    Synthesis and Characterisation of (Alkoxybenzimidazolin-2-ylidene)palladium Complexes: The Effect of Ancillary Ligands on the Behaviour of Precatalysts

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 13 2009
    Murray V. Baker
    Abstract A series of new N-heterocyclic carbene (NHC),palladium(II) complexes bearing electron-rich benzimidazolin-2-ylidene ligands are described and structurally and spectroscopically characterised. These (benzimidazolin-2-ylidene)palladium complexes bear butoxy groups to increase the solubility and perhaps influence the catalytic activity by increasing the electron density around the metal centre. The effect of varying the ancillary ligands is investigated, although these ligands do not appear to significantly alter the activity of the complexes as precatalysts. Preliminary studies indicate the complexes act as precatalysts with moderate activity in the Mizoroki,Heck and Suzuki,Miyaura coupling reactions. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) [source]