Departament de Química Física i Inorgànica

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Grup de Catlisi Homognia i Sntesi Orgnica Estereoselectiva 2001 SGR 00316. Prof. Sergio Castilln Sntesis Orgnica. Departament de Qumica Anlitica I Qumica Orgnica. Prof. Carmen Claver Organometl.lics i Catlisi Homognia OMICH. Departament de Qumica Fsica i Inorgnica. - PowerPoint PPT Presentation

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  • Departament de Qumica Fsica i Inorgnica

    Grup de Catlisi Homognia i Sntesi Orgnica Estereoselectiva 2001 SGR 00316Prof. Carmen ClaverOrganometl.lics i Catlisi HomogniaOMICHProf. Sergio CastillnSntesis OrgnicaDepartament de Qumica Anlitica I Qumica Orgnica

  • Metallic nanoparticles as catalyst Hydrogenation Hydrosilylation Oxidation C-C coupling reactionsChem. Eur. J., 1997, 3, 1200Tetrahedron Lett. 1998, 39, 1941Probing Catalysis on the Nanoscale Science & Technology, C&EN,September 27,2004-Only one example in enantioselective catalyst-High activity and selectivity (large specific surface)-Activity in reactions where other catalysts are not active-Efficient catalysts for several proceses

  • Metallic nanoparticles stabilized by organic ligandsStabilisation and reproducibility.

    Control of nanoparticles.

    Uniformity in particle size, composition and morphology.

    Systematic modification of the ligands: Effect on the properties of the nanoparticles.

    Organometallic complexes as starting materials.

  • NANOCATALYSTMetal Nanoparticles Stabilized by Organic Ligands. Applications in CatalysisSynthesis of nanoparticles of transition metals stabilized by organic ligands: -Perfluorinated ligands. Application in hydrogenation reaction.

    -Chiral ligands with carbohydrate backbone. Application C-C coupling reactions

  • -Synthesis of pyridine derivative perfluorinated ligands

    -Metal nanoparticles stabilization of different transition metals

    -Application as catalyst for arene hydrogenation in supercritic CO2

    1. Synthesis of nanoparticles of transition metals stabilized by organic ligands. Application in hydrogenation reaction

  • Influence of Organic Ligands on the Stabilization Organometallic Palladium Nanoparticles. E. Ramirez, S. Jansat, K. Philippot, P. Lecante, M. Gomez, A.Masdeu, B. ChaudretJ. Organomet. Chem. 2004, (submitted)

  • -Design and synthesis of new carbohydrate ligands

    -Synthesis and characterization of metal nanoparticles(Rh,Pd, Ru) with new chiral ligands

    -Application in palladium catalyzed C-C bond reactions and other catalytic processes.2. Metal nanoparticles stabilized by organic chiral ligands with carbohydrate backbone.

  • A case for Enantioselective Allylic Alkylation Catalyzed by Palladium NanoparticlesS.Jansat,M. Gomez, K. Philippot, G.Muller, E. Guiu, C. Claver, S. Castilln, B. ChaudretJ. Am. Chem. Soc., 2004, 126, 1593Synthesis of palladium nanoparticlesL=

  • Catalysis. Reaction of allylic alkylation-Homogeneous catalyst and nanocatalyst behave differently-First example of kinetic resolution with nanocatalystJ. Am. Chem. Soc., 2004, 126, 1593

    Catalyst

    I/Pd/L*

    Time (h)

    Conv. (%)

    ee II (%)

    ee I (%)

    Coll.1

    100/1/0.2

    24

    56

    94 (S)

    92 (S)

    Coll.1

    100/1/0.2

    168

    59

    94 (S)

    98 (S)

    Mol.1

    100/1/1.25

    1.5

    83

    90 (S)

    0

  • X 100000X 150000Pd/L 1/0.1 R: 43 %L=

  • Aurora RuizElena FernndezMontse DiguezOscar PmiesYolanda Daz

    Montse GmezUBGuillermo MullerUBIsabelle FavierUBAsymmetric CatalysisDr. Carmen ClaverDr. Sergio CastillnRosa AxetEster Guiu

    Supercritic CO2 Dr. Anna M. Masdeu-Bult Dr. Nuria Ruiz Marta Gimnez Clara TortosaDr. Bruno ChaudretLCCDr. Karine PhilippotLCCDr. Susanna JansatLCCFinancial SupportI+D- MCyT - SpainDGR- Generalitat CatalunyaAccin Integrada-Picasso HF 2003PICS Project- NANOMETCAT 2003

  • CollaborationsPICS Project- NANOMETCAT 2003

    Universitat de Barcelona (Prof.G. Muller, Dra. M. Gmez)Universitat Autnoma de Barcelona (Prof. M. Moreno)ICIQ (Prof. M. Perics)Universit de Montpellier (Prof. M.Corriu)Universit de Rennes ( Prof. A. Roucoux)Universit de Strasbourg (Prof. M. Pfeiffer)