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Listar por autor "Grirrane Tayari, Abdessamad"

Mostrando ítems 1-15 de 15

Air-Stable, Dinuclear and Tetranuclear sigma,pi-Acetylide Gold(I) Complexes and Their Catalytic Implications

Grirrane, Abdessamad; García Gómez, Hermenegildo; Corma Canós, Avelino; Alvarez González, Eleuterio (John Wiley & Sons, 2013)

[EN] Two for one gold: Factors governing the formation of isolable digold(I) ó,ð-acetylide complexes are given (see scheme), indicating the general tendency of phosphine AuI precatalysts to form this type of complexes, ...
Au@UiO-66: a base free oxidation catalyst

Leus, K; Concepción Heydorn, Patricia; Vandichel, M.; Meledina, M.; Grirrane, Abdessamad; Esquivel, D.; Turner, S.; Poelman, D.; Waroquier, M.; Van Speybroeck, V.; Van Tendeloo, G.; García Gómez, Hermenegildo; Van Der Voort, P. (Royal Society of Chemistry, 2015)

[EN] We present the in situ synthesis of Au nanoparticles within the Zr based Metal Organic Framework, UiO-66. The resulting Au@UiO-66 materials were characterized by means of N-2 sorption, XRPD, UV-Vis, XRF, XPS and TEM ...
Catalytic Activity of Cationic and Neutral Silver(I)-XPhos Complexes with Nitrogen Ligands or Tolylsulfonate for Mannich and Aza-Diels-Alder Coupling Reactions

Grirrane, Abdessamad; Alvarez-González, Eleuterio; García Gómez, Hermenegildo; Corma Canós, Avelino (John Wiley & Sons, 2016)

[EN] Cationic and neutral silver(I)-L complexes (L = Buchwald-type biaryl phosphanes) with nitrogen co-ligands or organosulfonate counter ions have been synthesised and characterised through their structural and spectroscopic ...
Catalytic stereoselective addition to alkynes. Borylation or silylation promoted by magnesia-supported iron oxide and cis-diboronation or silaboration by supported platinum nanoparticles

Khan, Anish; Asiri, Abdullah M.; Kosa, Samia A.; García Gómez, Hermenegildo; Grirrane, Abdessamad (Elsevier, 2015-09)

Iron oxide nanoparticles supported on magnesia (FeO/MgO) have been prepared by NaBH4 reduction of Fe(SO4) on MgO and spontaneous reoxidation upon storage. XPS of FeO/MgO indicates the presence of Fe(0) (16%) and Fe(II) ...
Cationic Copper(I) complexes as highly efficient catalysts for single and double A(3)-coupling mannich reactions of terminal alkynes: Mechanistic insights and comparative studies with analogous Gold (I) complexes

Grirrane, Abdessamad; Alvarez, Eleuterio; García Gómez, Hermenegildo; Corma Canós, Avelino (Wiley-VCH Verlag, 2014-10-27)

[EN] Cationic Cu L complexes (L=Buchwald-type phosphane) with N co-ligands have been characterised by structural and spectroscopic properties. These copper(I) complexes are extremely active catalysts, far more active than ...
Double A(3)-Coupling of Primary Amines Catalysed by Gold Complexes

Grirrane, Abdessamad; Alvarez-González, Eleuterio; García Gómez, Hermenegildo; Corma Canós, Avelino (John Wiley & Sons, 2018)

[EN] A novel family of dipropargylamines has been synthesized in one pot through a double catalytic A3-coupling of five component. Several reactions of LAu-amine complexes with organic reagents were studied and followed ...
Gold-Catalyzed Synthesis of Aromatic Azo Compounds from Anilines and Nitroaromatics

Grirrane ., Abdessamad; Corma Canós, Avelino; García Gómez, Hermenegildo (Gale Research Inc., 2008)

[EN] The selective formation of aromatic azo compounds at preparative or industrial levels requires stoichiometric amounts of environmentally unfriendly transition metals or nitrites. Here, we show that gold nanoparticles ...
Mixed (Fe2+ and Cu2+) double metal hexacyanocobaltates as solid catalyst for the aerobic oxidation of oximes to carbonyl compounds

Garcia-Ortiz, Alma; Grirrane, Abdessamad; Reguera, Edilso; García Gómez, Hermenegildo (Elsevier, 2014-03)

Mixed Iron and copper hexacyanocolbatate is a suitable heterogeneous and recoverable catalyst for the aerobic oxidn. of oximes to the corresponding ketone. The reaction can be conveniently carried out in water-ethanol ...
Orthogonal C N Plus C C Tandem Reaction of Iodoanilines Leading to Styrylguanidines Catalyzed by Supported Palladium Nanoparticles

Grirrane, Abdessamad; García Gómez, Hermenegildo; Corma Canós, Avelino; Álvarez, Eleuterio (Wiley-VCH Verlag, 2012-11-19)

Two birds, one nanoparticle: A highly efficient and selective tandem reaction comprising C[BOND]N and C[BOND]C cross-coupling of iodoanilines to form styrylguanidines by using a recyclable, heterogeneous, supported palladium ...
Preparation of Tremorine and Gemini Surfactant Precursors with Cationic Ethynyl-Bridged Digold Catalysts

Grirrane, Abdessamad; Alvarez-González, Eleuterio; García Gómez, Hermenegildo; Corma Canós, Avelino (John Wiley & Sons, 2017)

[EN] Tremorine and precursors of gemini surfactants were synthesised in a one-pot, three-step, double-catalytic A3 coupling reaction and characterised by structural and spectroscopic methods. The cationic [Au-I(L1)]SbF6 ...
Stereoselective single (copper) or double (platinum) boronation of alkynes catalyzed by magnesia-supported copper oxide or platinum nanoparticles

Grirrane, Abdessamad; Corma Canós, Avelino; García Gómez, Hermenegildo (Wiley-VCH Verlag, 2011-02-18)

Copper(II) oxide nanoparticles supported on magnesia have been prepared from CuII supported on magnesia by hydrogen reduction at 400°C followed by storage under ambient conditions. X-ray photoelectron spectroscopy of the ...
Structural Analysis of Zincocenes with Substituted Cyclopentadienyl Rings

Fernandez, Rafael; Grirrane, Abdessamad; Resa, Irene; Rodriguez, Amor; Carmona, Ernesto; Alvarez, Eleuterio; Gutierrez-Puebla, Enrique; Monge, Angeles; Lopez del Amo, Juan Miguel; Limbach, Hans-Heinrich; Lledos, Agusti; Maseras, Feliu; del Rio, Diego (Wiley, 2009)

[EN] New zincocenes [ZnCp'2] (2-5) with substituted cyclopentadienyl ligands C(5)Me(4)H, C(5)Me(4)tBu, C(5)Me(4)SiMe(2)tBu and C(5)Me(4)SiMe(3), respectively, have been prepared by the reaction of ZnCl(2) with the appropriate ...
Supported palladium nanoparticles as heterogeneous ligand-free catalysts for the Hiyama C C coupling of vinylsilanes and halobenzenes leading to styrenes

Grirrane, Abdessamad; García Gómez, Hermenegildo; Corma Canós, Avelino (Elsevier, 2013)

[EN] Palladium nanoparticles supported on magnesia is a highly efficient solid, reusable catalyst to promote in the absence of phosphine ligands the coupling of vinylsilanes with iodo- and bromobenzenes to form styrenes.
Synthesis, Structure, Reactivity and Catalytic Implications of a Cationic, Acetylide-Bridged Trigold-JohnPhos Species

Grirrane, Abdessamad; Álvarez, Eleuterio; García Gómez, Hermenegildo; Corma Canós, Avelino (John Wiley & Sons, 2020-07-17)

[EN] The cationic complex [(JohnPhos-Au)(3)(acetylide)][SbF6] (JohnPhos=(2-biphenyl)di-tert-butylphosphine, L1) has been characterised structurally and features an acetylide-trigold(I)-JohnPhos system; the trinuclear-acetylide ...
Thiodiacetate-manganese chemistry with N-ligands: unique control of the supramolecular arrangement over the metal coordination mode

Grirrane, Abdessamad; Pastor, Antonio; Galindo, Agustín; Álvarez, Eleuterio; Mealli, Carlo; Ienco, Andrea; Orlandini, Annabella; Rosa, Patrick; Caneschi, Andrea; Barra, Anne-Laure; Fernández Sanz, Javier (Wiley-VCH Verlag, 2011-09-12)

[EN] Compounds based on the Mn-tda unit (tda=S(CH2COO)2 2) and N co-ligands have been analyzed in terms of structural, spectroscopic, magnetic properties and DFT calculations. The precursors [Mn(tda)(H2O)]n (1) and ...